Calcium Deficiency Symptoms: 17 Signs To Watch Out For

Published: April 26, 2019
Updated: July 14, 2020

Calcium is arguably the most important nutrient in your body.

More than 99% of your calcium is stored in your bones and your teeth, which supports skeletal function and structure. The rest of the calcium in your body is used for other critical functions such as muscle contraction, blood vessel contraction and expansion, and sending messages through the nervous system.

But even though it’s one of the most critical minerals for your health, most people are still not getting enough. In fact, one study suggests as much as 68% of the American population is calcium deficient.

Adolescent girls and boys, women over 50, and men over 70 are at a particularly high risk of not meeting their daily calcium requirements. Menopausal women, vegans, and anyone with a dairy intolerance are also more prone to calcium deficiency than the general population.

What is Calcium Deficiency Disease?

Calcium deficiency disease, known as hypocalcemia, is a global health problem. People around the world are simply not getting enough calcium from their diets. This is particularly problematic in developing nations where food sources may be scarce.

When you have low calcium intake, you increase your risk of developing diseases like:

  • Osteopenia: Bone loss or bone thinning beyond the normal range is known as osteopenia. It’s a precursor to osteoporosis and is officially marked with a T-score between -1 and -2.49. T-scores are calculated as a part of DEXA scans, which measure bone mineral density.
  • Osteoporosis: Excessive bone density loss resulting in a T-score of -2.5 or lower is categorized as osteoporosis. Bones become weak and brittle and put you at an increased risk of fracture.

If your body doesn’t get enough calcium to keep its base functions running smoothly, it will leach calcium from your bones to make up for the shortfall.

If this goes on for long enough, your bone mineral density will deplete to the point of osteopenia or, worse, osteoporosis.

Since calcium is so critical throughout the body, low calcium symptoms can show up anywhere. And they can manifest in many different ways.

Signs and Symptoms of Calcium Deficiency

Calcium deficiency symptoms vary from mild to severe, if left untreated. But even if you don’t have any obvious signs associated with low calcium, especially early on, metabolic changes and potential dysfunctions may have already begun.

calcium deficiency signs and symptoms infographic

[embed_infographic title=”Calcium Deficiency Signs and Symptoms” alt=”Calcium Deficiency Signs and Symptoms infographic” src=””]

Minor calcium deficiency symptoms can include:

  • Numbness
  • Tingling Fingers
  • Muscle cramps
  • Lethargy
  • Poor appetite
  • Weak or brittle fingernails
  • Difficulty swallowing
  • Fainting

More severe calcium deficiency symptoms can include:

  • Mental confusion, irritability, depression, and anxiety
  • Tooth decay
  • Insufficient blood clotting
  • Bone fractures
  • Osteopenia or osteoporosis
  • Growth and development delays in children
  • Heart problems involving blood pressure and heart rhythms

The US Surgeon General warns that by 2020, 50% of people over the age of 50 will be at risk for osteoporotic fractures. That’s right –– half of the entire 50+ population is at risk of breaking a bone.

America is one of the top sufferers from osteoporosis in the world, and the age to start getting concerned is getting younger and younger. Why, you ask? Look at the following major governmental studies.

From 1982–86, the US Food and Drug Administration (FDA) conducted the “Total Diet Study.” The study found several age and gender groups deficient in calcium, magnesium, and several other minerals important to bone health.

In 1996, the US Department of Agriculture (USDA) completed its “Continuing Survey of Food Intakes of Individuals,” which corroborated the FDA’s study. The USDA found both men and women of all ages were deficient in calcium. The most shocking statistic was for teen girls; 87% were not meeting their recommended daily intake of calcium.

The National Institutes of Health compares bone growth in children like depositing money in the bank for when you’re older. During childhood and into early adulthood, more bone is deposited than withdrawn as the skeleton grows in density and size. So the more you build up in your formative years, the longer you’ll have a supply to draw from as you age.

But how can you know if you’re calcium-deficient? A 24-Hour Urine Calcium test is the optimal lab for people concerned about their rate of calcium/bone loss. Talk to your doctor about this test to establish your calcium baseline and give you an idea of how much more you need.

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Causes of Calcium Deficiency

Calcium deficiency doesn’t happen overnight. It can take years to manifest as physical symptoms, so by the time a deficiency becomes obvious, the damage is already done.

Before low calcium symptoms appear, keep these causes in mind:

Calcium element icon

Lack of Calcium

This is a bit of an obvious one, but low calcium intake over a long period of time is a primary cause of calcium deficiency. How do you know how much calcium is enough? It’s recommended that adults over the age of 19 consume between 1,000–1,200 mg every day, depending on your gender.

Prescription Medication Icon

Prescription Medications

Certain medications may decrease calcium absorption by interfering with your body’s ability to absorb nutrients. In particular, drugs like PPIs, lipid-lowering statins, diuretics, anticonvulsants, and corticosteroids have been linked to reduced calcium and vitamin D levels. For a more thorough look at drugs that can cause bone loss, check out our blog post on the top 12 prescription drugs that cause osteoporosis.

Dietary intolerance icon

Dietary Intolerance

People with lactose intolerance or a dairy allergy are missing out on a whole calcium-rich food group and may struggle to find enough adequate dietary sources of calcium. Gluten sensitivities and celiac often lead to inflammation and malabsorption of nutrients and the subsequent risk of bone loss. To help find calcium-rich foods that fit your lifestyle, we’ve created a guide to some of the best plant and animal-based calcium food sources.

Genetic factors icon

Genetic Factors

Vitamin D-resistant syndromes are caused by hereditary defects or mutations in the vitamin D receptor. Impaired vitamin D receptors can have a direct impact on the body’s ability to absorb calcium. Inherited disorders of calcium and phosphate homeostasis can also cause bone loss and calcium deficiency. Evaluating organ systems and hormone levels will help with the diagnosis process and guide treatment options.

Malabsorption icon


Calcium absorption refers to the amount of calcium absorbed from the digestive tract into your body’s circulatory system. Another term for this is calcium bioavailability. Calcium absorption can be affected by the amount of calcium in your body, your vitamin D, and K2 levels, your magnesium and trace mineral status, age, pregnancy, and even certain plant substances in your diet. The amount of calcium consumed at a time can also affect absorption. For example, the efficiency of calcium absorption decreases as the amount of calcium you consume at a meal increases. A good rule of thumb is to not take more than 500 mg of calcium at a time because the absorption becomes quite low on any amount above that limit.

Age icon


Infants and children absorb as much as 60% of the calcium they consume. But once you reach adulthood, your absorption slowly decreases to about 15–20%. If you’re only absorbing 15–20% of the calcium you are consuming, it’s difficult to get enough through diet alone.

Hormonal changes icon

Hormonal changes

A decline in estrogen during menopause causes women to lose bone density more rapidly. Postmenopausal women have about one-tenth of the estrogen levels that premenopausal women have. Meanwhile, low parathyroid hormone levels also impact your body’s ability to absorb calcium effectively.

Calcium is –– and always will be –– crucial for bone health. But when it comes to strong and healthy bones, other critical nutrients need to be taken with calcium for optimal health benefits.

These are:

Vitamin D icon

Vitamin D

Calcium and vitamin D work really well together. When you take vitamin D, you increase your body’s ability to absorb calcium effectively. Lara Pizzorno, the author of Your Bones, says, “Less widely known is that vitamin D also boosts the expression of the vitamin K-dependent proteins. So when you take supplemental vitamin D, you are increasing the amount of calcium available in your body and, therefore, your need for vitamin K.” In other words, vitamin D increases the amount of calcium you absorb, but in turn, also increases your need for vitamin K.

Vitamin K2 icon

Vitamin K2

Don’t mix this up with vitamin K1. Vitamin K2 has nothing to do with blood clotting factors. And it’s very difficult to get without supplementation. It’s not in leafy greens like K1 and is found only in tiny amounts in eggs and cheeses. Its main role is to regulate calcium deposition. Meaning, vitamin K2 cleans calcium deposits from your arteries and moves it to your bones. Talk about important!

Magnesium icon


It’s reported that as many as 80% of Americans are magnesium-deficient! Deficiency of this mineral affects bone building, bone fragility, and alters calcium metabolism and the hormones that regulate calcium.

How is Calcium Deficiency Diagnosed?

Hypocalcemia can be caused by low vitamin D levels leading to poor calcium absorption, or because of reduced parathyroid hormone function. Low parathyroid hormone levels lead to excessive calcium loss through the kidneys and reduced intestinal absorption of calcium.

Because many symptoms of hypocalcemia are obvious, your doctor will first make a clinical assessment of any symptoms, like muscle spasms. One spasm in particular — Trousseau’s Sign, a hand spasm brought on by inflation of a blood pressure cuff — is a good indicator. That’s because it’s present in 94% of hypocalcemic patients and only 1% of non-hypocalcemic people.

Longstanding hypocalcemia is associated with neuropsychiatric symptoms (depression, anxiety, euphoria, psychosis, etc.), cataracts, and even intracranial pressure (pressure buildup inside your skull).

It should also be noted that gradual hypocalcemia is less likely to have obvious outward signs than if your calcium levels are suddenly and rapidly depleted.

Beyond observational diagnosis, your doctor will look at your blood work to check your calcium, vitamin D, and parathyroid levels. The most accurate vitamin D test is the 25-hydroxyvitamin D blood test. Optimal blood levels of 25OHD are 50-80 nanograms per mL.

Your doctor will also ask about your medical history as hereditary conditions can play a role in developing hypocalcemia and osteoporosis. They may also recommend a DEXA scan depending on your age to assess your bone mineral density.

How to Prevent and Address Calcium Deficiency

Hypocalcemia is easy to address and prevent and generally involves adding more calcium to your diet. But your treatment plan will ultimately depend on the severity of your calcium deficiency and should be discussed with your doctor.

As far as prevention goes, it’s never too early to start. Focus on eating calcium-rich foods with plenty of bone-friendly nutrients. And definitely check out the recipe section of our blog for quick, easy, and delicious bone-healthy recipes the whole family can enjoy.

After peak bone mass, which most people reach around age 40, you begin to lose 1% of your total bone mineral density each year. Your absorption of vitamins and minerals also declines as you age. That is why recommendations for dietary calcium intake are higher if you’re 51 and older.

And yet, even with everything we know about the consequences of calcium deficiency, research shows that as much as 68% of Americans still have a low calcium intake.

So to ensure you are getting enough, try AlgaeCal Plus. AlgaeCal Plus is a natural, whole-food supplement with the ideal blend of vitamins and minerals that work with your body to not only maintain bone density but actually build new bone. AlgaeCal’s plant-based calcium naturally contains all 13 essential bone-building nutrients and is specially formulated with vitamin D3, vitamin K2, and boron.

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Article Comments

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  1. Jacquelyn

    November 3, 2015 , 10:46 pm

    Can u order this by chk.? My husband won’t let me use a debit or credit card. He will only let me pay by a personal chk. or a money order or cashiers chk.

  2. Monica

    November 4, 2015 , 7:30 am

    Hi Jacquelyn,

    We do accept check order or money order. You can find our mailing address on our contact page:

    – Monica @ AlgaeCal

  3. Amayra

    May 18, 2016 , 10:16 am

    I woul like to know about taking calcium supplement,
    You said that most of calcium are made from rock,
    What do you think about coral calcium, and I would like to ask you about constipation and bloating I started having about almost two years, have to say that I am postmenopausal, 54 years old,

  4. Monica

    May 19, 2016 , 2:16 am

    Hi Amayra,

    Great question. You can see the comparison of calcium supplements here:

    For coral calcium in particular, go here:

    – Monica @ AlgaeCal

  5. Nadia N.

    December 28, 2017 , 12:53 pm

    Peak bone mass occurs at age 30 not 40 as this article states.

  6. Jenna AlgaeCal

    January 2, 2018 , 10:57 am

    Hi Nadia,

    Thank you for taking the time to comment! You’re absolutely correct; most women reach peak bone mass by the age 30. We are referring to the next stage in bone health – where around the age of 40, we start to lose 1% of our bone density each year.

    We appreciate you bringing this to our attention, we can definitely see how the way it was written may have been confusing, and we will make sure that is corrected. Please let us know if you have any questions!

    – Jenna @ AlgaeCal

  7. Karen McNamara

    March 29, 2018 , 1:12 pm

    Will this product upset my stomach???

  8. Jenna AlgaeCal

    April 3, 2018 , 10:25 am

    Hi Karen,

    Good question. The majority of calcium supplements are rock-based, so it’s no wonder they are not well tolerated and can cause stomach irritation! AlgaeCal is different. It does not cause an upset stomach because it is plant-based calcium, so our body recognizes it as food, similar to broccoli, spinach, and other leafy greens.

    If you’d like to learn more about the difference between rock-based & plant-based calcium, check out this blog post:

    – Jenna @ AlgaeCal

  9. Juliet Scholz

    April 28, 2018 , 6:59 am

    Can I take Algaecal on empty stomach.? Will it be absorb just as well as when taken with food?

  10. Jenna AlgaeCal

    May 3, 2018 , 4:47 pm

    Hi Juliet,

    Good question! While you can take AlgaeCal on an empty stomach, we recommend taking it with food for the best results. Having food in your stomach helps to stimulate stomach acid production and increase solubility. For more information about how to take AlgaeCal go here.

    We hope that helps!

    – Jenna @ AlgaeCal

  11. Sheila Claybourn

    April 28, 2018 , 7:34 am

    Hi Monica,
    A well written article. Thank you. I ve been using Algae Cal and the Strontium Citrate you all sell as well for the past six months. I hope to see increases.

    Regarding Parathyroid Hormone having too much cause depletion of bones as well. I had two parathyroid tumors removed in 2015. Tumors produce too much hormone and cause bone destruction. Good thing is we have four parathyroid glands and when two bad ones were removed the sleeping one wakes up and produces just the right amount of hormone.
    I was always supplementing calcium since age 30 and still saw bone density decrease. Now that tumerous glands removed I have seen increase in hips two years later. Dr Norman in Florida has a great website which has great video education and pages of twenty years of data. Fourth year after surgery is critical for me as that will max time for
    Bone building with supplements and if my -3’lower Back has not improved I may have to get prescription from doctor. I am trying to keep my Algae Cal supplement regime and exercise too. Thank You Again for communication it helps alot!

  12. Monica AlgaeCal

    May 3, 2018 , 11:41 pm

    Thanks for sharing, Sheila! If you have any questions about your bone health journey please call our Bone Health Consultants at 1-800-820-0184 or email [email protected]. We’re always here to help! 🙂

    – Monica

  13. Rudolph F Richardson

    April 28, 2018 , 8:32 am

    Please send information on this topic regularly.

  14. Jenna AlgaeCal

    April 30, 2018 , 3:37 pm

    Glad you liked it, Rudolph! We’ll definitely work to create more content like this 🙂

    – Jenna @ AlgaeCal

  15. Maryann

    April 28, 2018 , 11:59 am

    In looking at my bone density report, there is a T score and a Z score. The T score compares to 20 and 30 year olds while the Z score compares to people closer to my age. I am 66 so being compared to 20-30 year olds—-I don’t see the point. I have ordered my algaecal and I am hoping I can get better scores on my next scan.

  16. Jenna AlgaeCal

    May 3, 2018 , 5:25 pm

    Hi Maryann,

    We definitely understand how this comparison can be a little confusing! We explain the reason your T-score is a better indicator of bone health here (as opposed to a Z-score).

    Feel free to let us know if you have any questions throughout your bone health journey! We’re always here to help.

    – Jenna @ AlgaeCal

  17. Skyring

    May 15, 2018 , 4:28 pm

    I am taking Grow Bone System by Garden of Life and would like to know what the difference is between your product and Grow Bone System. Looking forward to an answer,

  18. Jenna AlgaeCal

    May 24, 2018 , 8:08 am

    Hi Skyring,

    Great question! We do provide some of our raw material for other companies to use in their own formulations, including Garden of Life.

    Although many of these formulations will have a similar makeup, including things like vitamin D3 and K2 along with their own blends of fruit and vegetable extracts; AlgaeCal’s proprietary blend of vitamins and minerals combined with our unique algae, make AlgaeCal the only calcium supplement on the market that has been supported time and time again to show a measured increase in bone density! We have 3 human clinical studies that have all been peer-reviewed and published in respected journals, and you can find them all here.

    In contrast, other calciums may simply slow down the rate of bone density loss. AlgaeCal is also the only calcium supplement guaranteed to increase bone density. You can learn about our guarantees here.

    Hopefully this helps in your research! If you have any further questions or concerns, you can always email us at [email protected] or call to speak with one of our Bone Health Consultants at 1-800-820-0184 🙂

    – Jenna @ AlgaeCal

  19. Janice Spencer

    July 15, 2018 , 10:58 am

    I am curious about how you would monitor the increase in bone density with Algaecal? Also, are there experts in osteoporosis in the USA where one could consult? Thank you.

  20. Jenna AlgaeCal

    July 16, 2018 , 3:22 pm

    Hi Janice,

    Changes in bone mineral density are based on before and after DXA scan (bone density scan) results.

    We recommend looking for a functional doctor through The Institute for Functional Medicine for an IFM certified practitioner in your area here – these are doctors who have gone the extra mile to do additional courses and certifications on top of their medical practice.

    You can also reach our Bone Health Consultants by calling 1-800-820-0184 or emailing [email protected]. Hope that helps!

    – Jenna @ AlgaeCal

  21. Deb Justice

    August 8, 2018 , 9:00 am

    I was diagnosed with low bone density in my early 50s.(I’m 68 now) I started the AlgaeCal about 2 years ago. This supplement along with a better diet and weight training resulted in me going from -3.5 score to -2.4!!! My doctor was AMAZED! He was so sure that I was just going to get worse. Will never be without AlgeCal!

  22. Jenna AlgaeCal

    August 15, 2018 , 1:27 pm

    Wow – thank you so much for sharing, Deb! Keep up the great work 🙂

    – Jenna @ AlgaeCal

  23. Jenna AlgaeCal

    October 9, 2018 , 11:36 am

    Absolutely, JamesMallery! Sounds both delicious and nutritious 🙂

    We also have lots of bone healthy recipes on our blog here if you’re interested.

    – Jenna @ AlgaeCal

  24. Karla

    October 18, 2018 , 5:29 am

    Can you still take this algaecal with regular multi vitamin daily?

  25. Jenna AlgaeCal

    October 23, 2018 , 11:33 am

    Hi Karla,

    Yes, you can! But there are a couple things to keep in mind:
    • You’re getting all of the vitamins and minerals your bones need from AlgaeCal Plus and Strontium Boost. But you can still take a multivitamin if you’d like — just make sure it contains less than 300 mg of calcium (since you’re getting all the calcium you need from AlgaeCal and your daily diet).
    • A general rule of thumb is to take any other supplements containing calcium, magnesium, iron or zinc 2 to 3 hours before or after your AlgaeCal. This will help limit any potential interactions and ensure you receive maximum absorption from all your supplements.

    For more information on how to take AlgaeCal check out this post.

    – Jenna @ AlgaeCal

  26. Biju job

    November 24, 2018 , 8:40 pm

    Iam 45 yrs old male last 15 yrs consuming whey protein .. but last two years suffering from bloting and constipation recently in my medical check up found that calcium deficiency and total body water is too low
    Kindly tell me what is the reason and how can i overcome these problems
    It will be highly appreciable your propmt reply

  27. Jenna AlgaeCal

    November 27, 2018 , 10:45 am

    Thanks for reaching out, Biju! So sorry to hear about your ongoing symptoms. It’s best to work with your doctor to determine what’s causing this for you as there are many different causes which need to be treated differently. For example, calcium deficiency can be caused by a lack of calcium, malabsorption, parathyroid issues, and more (listed in the article).

    Hopefully this information helps facilitate a discussion with your doctor!

    – Jenna @ AlgaeCal

  28. Suman Gautam

    December 13, 2018 , 10:59 pm

    I am 19 years old and I am very thin and my legs and arm diameter is very less I think i was suffering from .ca. deficiency and my muscle cramp also and although my age is 19 i am only 45 kg why this is happened with me.I am so afraid how can I solve although I eat milk ,eggs daily it happened with me. Plz help me??

  29. Jenna AlgaeCal

    December 17, 2018 , 2:01 pm

    We’re so sorry to hear this, Suman. It’s important to work with a doctor who can help determine any underlying causes to what you’re experiencing. We recommend looking for a functional doctor through The Institute for Functional Medicine and look for ones in your area that are IFM Certified Practitioners.

    If you have any questions please feel free to call us at 1-800-820-0184!

    – Jenna @ AlgaeCal

  30. Darman

    May 10, 2021 , 4:00 am

    I just read your body condition today, I think it’s better if you find a doctor in Gastroenterologist specialist, it might be you are not only having calcium deficiency but you might be having nutrients deficiency, coming from the malabsorption of your digestive system. So if you take calcium alone, it might won’t solve your problem, you might need to take vitamins and minerals in high dose for a while. Hopefully you will getting better soon and have a wonderful life

  31. Shalini

    February 28, 2019 , 11:57 pm

    I don’t know if I am calcium deficient but 2 yrs back I lifted heavyweight and from that time, my back hurts a lot, when ever I do jumping or any exercise like this can be a sign of calcium deficiency because all those symptoms mentioned above totally defines my condition.Sometimes I cant even sit properly or bend (often) plz reply.sorry the poor English.

  32. Jenna AlgaeCal

    March 4, 2019 , 2:36 pm

    We’re so sorry to hear that, Shalini. It’s best to speak with your doctor to determine if calcium deficiency is causing your back pain, or perhaps something else.

    Wishing you all the best! And if there’s any way we can help please call us at 1-800-820-0184 or email [email protected]. ❤️

    – Jenna @ AlgaeCal

  33. Latonya Jones

    March 9, 2019 , 6:44 pm

    My son was born with calcium deficiency he stayed in the hospital a week after birth he suffered with staring seizures but that stopped after he was treated for it but now he cramps up so bad and the doctor say there’s nothing he can do about it I was wondering could this be affecting him now and making him cramp up

  34. Jenna AlgaeCal

    March 18, 2019 , 9:56 am

    So sorry to hear about the cramps your son is experiencing, Latonya. It sounds like this could be a possibility but it’s best to work with his doctor to determine the underlying cause.

    You may find it beneficial to work with a functional doctor. We recommend looking for one through The Institute for Functional Medicine” and look for ones in your area that are IFM Certified Practitioners.

    Hope that helps ?

    – Jenna @ AlgaeCal

  35. Nasir

    May 8, 2019 , 11:37 pm

    I have a pain one of my knees, I injured two years ago when I was playing football and I linked a doctor and he told me that I have meniscus injury and he gave me some injections and tables which remove all pains and swellings at that time.
    After I awhile, about year later I try to play again then I feel a pain like before when I try to kick the ball or suddenly change direction ( during running), when I rest about a minute the pain go out.
    I’m in somalia and we don’t have a specialist doctor in here, so what can you recommended me to do naturally, is there any diets/food or any natural remedies that restore my meniscus.
    Sorry my broken English.

    Thanks Jenna.

  36. Jenna AlgaeCal

    May 14, 2019 , 9:12 am

    So sorry to hear this, Nasir — that sounds very uncomfortable.

    The meniscus is made of cartilage, and AlgaeCal has been studied specifically for bone mineral density, not cartilage. However, there are nutrients that are important for both bone and cartilage development. For instance, protein and amino acids (often called the building blocks of protein) contribute to both cartilage and bone cells. And silicon is also needed by both. AlgaeCal Plus specifically contains 25.94 mg of silicon in the daily dose (4 capsules) which is significant for bone health — so it may be helpful for you.

    Hopefully that helps!

    – Jenna @ AlgaeCal

  37. Husna

    March 13, 2019 , 3:45 am

    I have chronic back pain..the pain is between my shoulder bone and spine and then it spread through out my back and body. I consulted many doctors but there wasn’t any permanent improvement in my condition..Sometimes the pain is so intense that i wake up from sleep. Please help me out

  38. Jenna AlgaeCal

    March 18, 2019 , 11:29 am

    Hi Husna,

    I’m sorry to hear about the back pain you’re experiencing. It’s important to first discover the underlying cause to this pain — have you had a chance to work with a functional doctor? We recommend looking for a functional doctor through “The Institute for Functional Medicine” and look for ones in your area that are IFM Certified Practitioners.

    Practitioners who go through the entire IFM certification process are truly dedicated – it takes a couple of years to complete, many in-person 4-5 day seminars, at least 1,000 hours of study, and a certification exam that rivals the exams docs take to get their medical license, plus the cost is high, both in terms of time spent and conference and seminar fees. And the doctors are doing this in addition to their medical practice! True dedication to providing the best care. To find an IFM certified practitioner click here and select only show IFM certified practitioners.

    Hopefully that helps!

    – Jenna @ AlgaeCal

  39. Janet

    May 1, 2019 , 9:00 pm

    The place you describe can also be the result of trigger points in the neck muscles, particularly the sternomastoids. Seek a massage therapist who knows about such, or buy the Trigger Point Therapy Handbook book and learn to do it yourself. It’s been a lifesaver for me!

  40. Mathilde Vandenbulke

    March 24, 2019 , 4:42 pm

    Hi. My 2 sons, now 13 and 7, both have been having severe growing leg pain when they were younger. My youngest still does once in a while. Over all these years, I have observed that anytime I tried to give them high quality Vit D3, they both would have their growing leg pain, even though they are always on the low average in their vit D blood tests. So this made me almost impossible to supplement them with D3 during the winter. My eldest at such terrible pain, especially evenings and night, that I consulted with him Pediatric Ortopedists + lots of integrative/functional medicine Doctors. No one has a clue and we were dismissed so many times: not a big problem for the kid, just give him an ibuprofen (like 5 days a week? Really). I have observed that supplementing them with Magnesium has been reducing the frequency, but does not avoid the problem all completely. If taken early in the pain, turmeric would work and calm b4 the pain would be too difficult. Nevertheless, not a single doctor was able to give us the slightest idea. Only my own observations helped a bit, but I’m still looking out for solutions, as I realized I do too can’t take too much Vit D. Indeed, I realize I do too get some pain in the legs if I take vit D3.
    My guts are telling me there is somethong related with minerals deficiency. Our nails are always brittle since we all take magnesium each night. So I wonder. Not very much attention is brought for this subject, whereas I hear lots of parents getting some similar concerns. Just wondering if you’re able to connect some dots for me.

  41. Jenna AlgaeCal

    April 9, 2019 , 8:55 am

    Hi Mathilde,

    Thank you so much for reaching out and sharing your story with us. I reached out to Lara Pizzorno, Bone Health Expert and author of Your Bones, for her best suggestions:

    It sounds like this family’s genetics predispose them to osteomalacia due to vitamin D insufficiency, but supplemental vitamin D does not help.

    My guess is that this is because of genetic issues that affect their ability to metabolize and utilize vitamin D, possibly because it is being taken as a capsule, which is what I hope is the case because that’s an easy fix.

    In brief, I suggest they try taking their vitamin D in sublingual form to see if this helps. And please ask if they will keep us posted on how they are doing!

    Here is my reasoning for this suggestion:

    Osteomalacia, which typically presents as bone pain and muscle weakness, occurs when newly formed bone is not mineralized in time during modeling (bone formation) in children, or when existing bone is replaced by unmineralized bone matrix (osteoid) during remodeling in children and adults. The main causes of this defective mineralization are a lack of needed minerals (primarily calcium). Calcium insufficiency results from insufficient dietary intake or insufficient sun exposure (not sure where this family lives or if they don’t get sun exposure because of sunscreen and clothing that covers too much skin) or lack of supplemental vitamin D, which as you know is required for our active absorption of calcium in the intestines.

    In this instance, vitamin D levels are low, but vitamin D supplements have not been helpful.

    One potential reason for this is that the genetic inheritance of this mother and her sons includes slow, less effective versions of the enzymes that convert D3 to 25(OH)D and then those that convert 25(OH)D to 1,25-D. They may also have inherited poorly formed vitamin D receptors, so the 1,25-D they do manage to produce does not bind well to cells, which is what initiates all vitamin D’s beneficial actions, including calcium absorption.

    When vitamin D is taken in capsule form, it will be sent from the digestive tract into the portal vein and delivered to the liver, where it will be processed by liver enzymes before it gets out into the systemic circulation.

    The liver is the primary place in the body where D3 is supposed to be converted to 25(OH)D, but enzymes that make this conversion are present in cells all over the body.

    If the liver enzymes are ineffective, and D3 is taken in capsule form, this conversion will not take place effectively. And that means that little 25(OH)D will be sent into the bloodstream and flow through the kidneys, which is the primary place where the enzymes that convert 25(OH)D to 1,25-D, the active hormonal form of vitamin D that is the only form in which this nutrient helps us absorb calcium, is produced.

    Again, the enzymes in the kidney that do this job are found in far smaller amounts in cells throughout the body, although the kidney is the primary place where this conversion occurs.

    Also, other enzymes in the liver and kidneys have the job of clearing out vitamin D. It’s also possible that this family’s genetic inheritance includes fast versions of these – that would also greatly impair their ability to maintain optimal levels of vitamin D and to absorb and utilize calcium.

    I have five suggestions:

    Try taking sublingual vitamin D – here’s a link to the product we use and recommend: Each drop provides 2,000 IU of D3. If they are taking AlgaeCal Plus, which is HIGHLY recommend since they need everything it contains, including the trace minerals, which are very important, they will be getting 1,600 IU of D3 daily from that (but in capsule form). Still, to err on the side of safety, I suggest they take just 2 drops of sublingual D3 for 2 months and then retest their 25(OH)D levels. This is the easiest, least expensive thing to try and may completely fix the problem.

    In addition to AlgaeCal Plus, they should be using Strontium Boost because strontium boosts calcium absorption, primarily due to its effects on the Calcium-sensing receptor – they can read about this—and a number of the other ways in which strontium improves healthy bone formation — in my post on strontium here. And, of course, at least 1,200 mg of calcium should be consumed daily – AP will be giving them 720 mg, so at least another 480 mg needs to be provided by their diet.

    Triple Power (TP) should also be taken – 2 TBS daily when pain is present. TP contains a significant dose of the active component in turmeric, which is called curcumin, in highly bioavailable, emulsified form. TP also provides EPA/DHA which are essential both for the resolution of inflammation and for the production of the mesenchymal stem cells that develop into osteoblasts.

    If they have not had their genomic profiles run, I urge them to do so! 23&me is one of the less costly options. They need to not just get the “ancestry” option, but have the full profile run. Once they have their “raw data” file, a number of AI tools are now available that can analyze the results – including our AI system, but we are not yet offering our system to the general public. I hope we will be doing so in 6 months as cost will be low, and it will become accessible to “normal” folks. At the moment, they can work with a doctor trained in genomics who can help them understand their raw data, but it’s expensive. Once they know which of the enzymes involved in vitamin D metabolism and/or the vitamin D receptor are not working well, treatment plans can be optimized.

    Discuss running the following labs with their doctor – these can help identify if osteomalacia is present AND after a few months of treatment, if what is being done is correcting it:

    1) PTH — serum calcium is usually normal in osteomalacia, so PTH is not typically checked, but high PTH is one indication for osteomalacia

    2) ALP in children and Bone ALP in adults, if elevated, indicate possible osteomalacia

    3) Serum 25OHD (if low, suggestive of osteomalacia if other factors are present)

    4) Urinary calcium (if low, suggestive of osteomalacia if other factors are present)

    Presence of the above features in the absence of renal/liver disease suggests a diagnosis of osteomalacia.

    Hopefully this is helpful for you, Mathilde. I’ll send you this information in an email as well ❤️

    – Jenna @ AlgaeCal

  42. Eve

    May 4, 2019 , 11:25 pm

    It might also be boron deficiency. Without it calcium is not used by the body properly. There is a lot boron in mineral water ‘Essentuki’.

  43. Linda S Hager

    May 15, 2019 , 6:13 pm

    I’ve had leg muscle cramps all my life with a rich calcium diet
    , but when I started taking magnesium and also ate foods rich in phosphorus, they disappeared. I’m also eating more nutrient dense foods and keeping the sugar low (5 mg), which is just health common sense. I’ve also heard about people who just can’t absorb vitamin D3, but in cases like this, it’s good to know doctors have solutions!

  44. Linda S Hager

    May 15, 2019 , 6:53 pm

    Potassium is also critical, and can be found in sweet potatoes, avocados and bananas.

  45. Dawn

    February 14, 2021 , 9:11 pm

    I saw your writing … my son, who is 15 now,
    experienced very painful growing pains when he was 7 years old. Sometimes the pains were so bad it was hard for him to walk. I took him to his pediatrician and she ran bloodwork. It all came back okay. When I asked about xrays she wanted to hold off since he was so young and didn’t want to expose him to the radiation. Less than a week later my son was at wrestling practice and was wrestling and fell to the ground screaming. He couldn’t move. We took him by ambulance to the ER. They took X-rays and he shattered his femur!!! They had to perform an emergency surgery. The orthopedic doctor found a bone cyst on his femur. She told me they don’t know what causes the bone cyst, but it is often found in boys between 7-15 years of age and is found on the major bones (hip, femur, arm, ankle bones). It’s not cancerous, but the bone cyst causes an air pocket in the bone. This air pocket weakens the bone and it’s just a time bomb waiting to happen. It could be something as simple as jumping of a curb that causes this trauma, which leads to the shattered break. The only way to find this bone cyst is by an X-ray or by the result of the trauma break. Please have your sons get checked!!! I never forgave myself for not insisting on the X-rays. If I had done that … he would have just had the surgery to remove the bone cyst. Instead he shattered his femur, had to have surgery to scrape the bone cyst off the bone, had to realign his shattered femur bone & had two metal rods inserted Into his femur to hold his femur bones in place. He was in a wheelchair for 3 months, then a walker, and then months of physical therapy. Then a year later had surgery to remove the rods and had to scrape the bone cyst away again because it started to grow back because they couldn’t get it all the first time due to the trauma of the shattered femur. Then had bone tissue grafted into the bone where the cyst was removed, then it was back to a wheelchair and then a walker. It was over 1 1/2 year process!! Please get your sons checked!!

  46. PIA

    June 28, 2019 , 1:14 pm

    what if these products do not have te expected results?

  47. Blaire AlgaeCal

    July 3, 2019 , 11:49 am

    Great question, Pia! AlgaeCal guarantees you will see an increase in your bone mineral density or we’ll give you your money back. To see the guarantee details, go here: Please don’t hesitate to email [email protected] or call our Bone Health Consultants at 1-800-820-0184 if you’d like more information. We are always happy to help ?

    – Blaire @ AlgaeCal

  48. Yadira Morales

    July 20, 2019 , 7:33 am

    I’m having a DXA scan soon. How long do I have to stop taking the AlgaeCal and Strontium Boost before the test.

  49. Megan AlgaeCal

    July 23, 2019 , 2:25 pm

    Great question, Yadira!

    We recommend simply pausing AlgaeCal and Strontium Boost one day before your DXA scan.

    We hope this helps and we’d love for you to update us on your DXA results! ?

    -Megan @ AlgaeCal

  50. Merle Doublin

    August 18, 2019 , 9:19 pm

    I have been told I need to take calcium. I am lactose intolerant and have sensitivity to gluten. calcium gives me TERRIBLE, uncontrollable gas. I cant WORK and take calcium. I am not fit to be around..and nothing I have tried has worked. I have bottles of various types of calim and cant take any of it. without running people out of the room. Is there a solution that will allow me to take calcium?

  51. Blaire AlgaeCal

    August 21, 2019 , 2:35 pm

    Hi Merle,

    Thank you for reaching out to us! We’re so sorry to hear about your experiences with calcium. Is it only dairy and traditional rock-based calcium supplements that cause these issues? If so, there are plenty of other foods you can get calcium from! You might find this list of calcium-rich foods handy.

    – Blaire @ AlgaeCal

  52. Gigi

    September 25, 2019 , 11:31 pm

    I’m allergic to Iodine. Found that out after being given by accident a syringe of something containing iodine in my IV when I was about 8 years old. Possibly contrast dye. I have consumed iodinized salt, and am fine with that. Am I able to take Algaecal as it has iodine in it? Thank you in advance,

  53. Blaire AlgaeCal

    September 27, 2019 , 11:12 am

    Hi Gigi,

    Thanks for reaching out! Although AlgaeCal is sourced from the ocean, it contains only 160 mcg per daily serving. For any severe allergies, we do advise consulting with a doctor/allergist for their best recommendation.

    Feel free to call our Bone Health Consultants at 1-800-820-0184 for more information ?

    – Blaire @ AlgaeCal

  54. Ayub

    October 9, 2019 , 5:09 am

    Hi doctor!
    I have a problem causing skin removal from finger tips.i met a doctor ,he advise me to take calcium supplement for a seems longer; isn’t it?

  55. Megan AlgaeCal

    October 11, 2019 , 9:45 am

    Hi Ayub!

    We wanted to clarify that we are not doctors or medical professionals and so cannot share medical advice! Having said that, your doctor may want you to take calcium supplements for a month to see if they help. If you don’t eat much calcium in your diet, it can be a good idea to take a calcium supplement regularly to help you meet your daily requirements.

    Hope this helps and do keep us updated! ❤️

    -Megan @ AlgaeCal

  56. zain ul abidin

    February 26, 2020 , 9:18 pm

    zain ul abidin
    i have problem of neck and shoulder and joint also back side headace pain with sometime and i feel a very light head tremors not regularly and i feel too much weakness in my body.
    please tell me what can i do

  57. Blaire AlgaeCal

    February 28, 2020 , 11:07 am

    Hi Zain,

    We’re so sorry to hear about the pain you’re experiencing. Do you know what’s causing the pain? We recommend working with your doctor to determine the appropriate treatment options for you.

    Hope you feel better very soon! ❤️

    – Blaire @ AlgaeCal

  58. Jyoti

    November 18, 2019 , 10:11 am

    Hello mam
    I have knees ,back,neck,shoulder pain ,since 2 months i feel dizzy my specks is correct and blood test is normal and cervical test is done there is no problem in neck.
    Dr. Prescribed me calcium Carbondale 500 daily,mythocobalamime,multivatimn syrup .i am taking for 1 months today 20th day i have taken medicine. I
    This help me and make me active,reduce pain ,better than before but now a days dizziness not improve complete i feel imbalance why? Please tell me what to do reduce imbalance problem.

  59. Megan AlgaeCal

    November 19, 2019 , 1:53 pm

    Hi Jyoti,

    We’re so sorry to hear about the health challenges you’ve been going through and the dizziness you’re experiencing ❤️ It sounds like you could benefit from the care of a functional medicine practitioner. You can search for certified practitioners in your area at this link.

    Hope this helps, Jyoti, and that you’re able to find out how to address your feelings of imbalance soon.

    -Megan @ AlgaeCal

  60. Sara Thamert

    December 4, 2019 , 12:05 am

    Hello! I have been taking AlgaeCal Plus+Strontium Boost for several months and have recently seen on YouTube an article by Ken D. Barry that Calcium is harmful to your health. Calcium can cause heart issues etc. He advises to throw out the Calcium and suggests taking a Vit. D supplement instead. He also recommends weight bearing exercises. What should I do? Thank you!

  61. Megan AlgaeCal

    December 5, 2019 , 1:42 pm

    Hi Sara, thanks for reaching out with your concerns!

    Mr. Barry is right – when it comes to traditional calcium supplements. See, the majority of calcium supplements provide only calcium or calcium + vitamin D, which is why they were found to increase the risk of stroke in some studies. You want to look for a calcium supplement that provides all the necessary bone-building vitamins and minerals, including ones that assist in both the absorption and direction of calcium. For example, AlgaeCal Plus includes vitamin K2, which helps direct calcium where it needs to go – into your bones – and away from soft tissues like the heart!

    Weight-bearing exercises are definitely beneficial to your bones! Feel free to check out the exercise section of our blog to get started today.

    -Megan @ AlgaeCal

  62. Mohsin Ali

    January 17, 2020 , 7:56 am

    i have problem of neck and shoulder pain with sometime and i feel a very light head tremors not regularly and i feel too much weakness in my body.
    please tell me what can i do

  63. Megan AlgaeCal

    January 21, 2020 , 8:42 am

    Hi Mohsin!

    Thanks for reaching out and we’re sorry to hear about the health challenges you’re going through ❤️

    As we aren’t medical professionals who are familiar with your current health or medical history, we would strongly encourage you to visit your doctor to ask about possible causes of what you’re feeling. If you’re interested in seeing a functional medicine doctor, you can search for certified functional medicine doctors in your area here.

    We hope you feel better soon!

    -Megan @ AlgaeCal

  64. Lizzy

    January 4, 2021 , 10:02 am

    Same thing happened to me, I went for a calcium test and it showed it was very low , since I started taking calcium supplement i feel better now

  65. Robbie Dunn

    January 31, 2020 , 6:56 am

    For breakfast in the mornings, I usually have Almond milk and Organic yogurt in my fruit smoothies or with whole grain oatmeal. Both of course, have Calcium Ingredients. I’m also taking Algae Cal Plus daily as directed.
    I try to eat vegetables with calcium in my diet as well.
    My calcium levels from the fasting labs Show a normal 10.1 mg/dL. I will give credit to Algae Cal.

    Am I consuming too much calcium in my breakfast diet along with the Algae Cal?
    What do you recommend?

  66. Megan AlgaeCal

    February 3, 2020 , 3:22 pm

    Hi Robbie, thanks for sharing!

    Sounds like you’re eating a very healthy diet – keep up the great work! ?

    To clarify, are you consuming AlgaeCal Plus along with your breakfast? If so, you’re likely taking too much calcium at once. Our bodies can only absorb around 500mg of calcium in one go, so it isn’t helpful to take more than 500mg. If this is the case, would it be possible to take AlgaeCal 2 hours before/after breakfast? If you prefer to chat about this over the phone, feel free to give us a call at 1-800-820-0184! ?

    -Megan @ AlgaeCal

  67. Ansari

    February 20, 2020 , 1:04 am


    Name: Ansaria
    Gender: Femal
    Age: 20

    I am suffering leg pain with knee pain last form two month.

    Also sometimes fainting and fever.

    Is this calcium deficiency??

  68. Megan AlgaeCal

    February 21, 2020 , 10:56 am

    Hi Ansari, thanks for reaching out!

    We’re sorry to hear about the symptoms you’ve been experiencing lately. As we aren’t medical professionals who are able to give diagnoses, please do check in with your doctor about the possibility of calcium deficiency. You may want to ask them about checking your blood calcium, vitamin D, and parathyroid levels.

    -Megan @ AlgaeCal

  69. neet

    March 2, 2020 , 12:47 am

    I’M Facing very low energy levels, from joints loud sound coming and fatigue every time don’t know why plz guide me if possible.

  70. Blaire AlgaeCal

    March 3, 2020 , 11:13 am

    Hi Neet,

    Thank you for sharing. We’re so sorry to hear what you’ve been experiencing!

    Neet, fatigue can be caused by various factors. We have a great article on ways to naturally boost your energy here!

    Of course, it’s always best to work with your doctor to determine the best course of action for your health! We hope you feel better soon. 🙂

    – Blaire @ AlgaeCal

  71. Sherri

    March 2, 2020 , 1:37 pm

    Hi, I heard somewhere (you know how reliable that is, haha) that bone density scan results vary by the scanner and for consistency the same scanner should be used to compare results. Do you have info on this? Thank you!

  72. Blaire AlgaeCal

    March 3, 2020 , 11:41 am

    Hi Sherri,

    Thanks for reaching out to us!

    That is true! As each machine has its own data set, we recommend using the same machine and the same technician for consistency purposes. AlgaeCal’s bone health expert Lara Pizzorno goes into detail regarding this on her #AskLara series here. You can also view more information on DEXA scans here.

    Hope that helps! Let us know if you have any further questions.

    – Blaire @ AlgaeCal

  73. Dessie

    September 12, 2020 , 11:21 am

    I’m currently taking 4 mg of warfing for DVT have been on them since 2005 I’m experience.being very tired from morning to afternoon. Could this be because of calcium.

  74. Blaire AlgaeCal

    September 15, 2020 , 1:48 pm

    Hi Dessie,

    Thanks for reaching out to us!

    We’re so sorry to hear about the tiredness you’re experiencing. We recommend speaking with your doctor to look into the reason you’re experiencing this ❤️

    – Blaire @ AlgaeCal

  75. Maria

    March 30, 2020 , 3:21 am

    Hi there,

    For years I took magnesium glycinate. Although I’ve experienced some side-effects while taking it, like feeling nauseas or having muscle cramps, it did always work very well. Unfortunately it stopped working a couple of months ago.

    After reading your article, I might think it has something to do with my calcium intake? I never drink any milk, since I don’t like it. Could that maybe be the reason?

  76. Megan AlgaeCal

    March 31, 2020 , 9:50 am

    Hi Maria!

    Adequate calcium intake is definitely important as well! If you’re interested, we have a list of Calcium-Rich foods you might find helpful here.

    -Megan @ AlgaeCal

  77. Naomi

    April 12, 2020 , 12:59 am

    Hi ma. Am having leg,hand and muscle cramps for some weeks nw could that be am having low calcium

  78. Blaire AlgaeCal

    April 13, 2020 , 1:28 pm

    Hi Naomi,

    We’re so sorry to hear about the cramps that you’re experiencing. Calcium deficiency could be a possible cause; however, we recommend working with your doctor to determine this.

    You might find it beneficial to work with a functional doctor. You can search for certified functional medicine doctors in your area using this link. Hope that helps! ❤️

    -Blaire @ AlgaeCal

  79. Okoroafor ke

    October 22, 2020 , 2:24 am

    I’m Kingsley writing from Nigeria for three months now I’m having difficulty in moving my legs freely, difficulty in swallowing thing, muscle cramp on both legs and sleep disturbance please could it be I’m having low calcium

  80. Blaire AlgaeCal

    October 23, 2020 , 9:08 am

    Hi Kingsley,

    Thank you for reaching out to us! We’re so sorry to hear what you’re going through. It’s possible some of these issues could be due to a lack of calcium; however, we recommend speaking with your doctor for a proper diagnosis.

    We hope you feel better soon! ❤️

    – Blaire @ AlgaeCal

  81. Utkarsh

    November 8, 2020 , 1:52 am

    there always comes a cracking sound from my knee when i do sit ups and also from my ankle but there is no pain in my muscles or anywhere else.
    does this mean deficiency of calcium.

  82. Megan AlgaeCal

    November 16, 2020 , 8:17 am

    Hi Utkarsh, thanks for reaching out!

    We checked in with Dr. Emma Gasinski, Physical Therapist. She advises that if this is your only symptom, this alone would not mean that you are having a calcium deficiency. It is a good sign that you are not experiencing pain and it is quite normal to hear cracking in the knees or ankles from just air within the joint that is getting released when you perform the sit up! If you do have any other symptoms or if this cracking starts to cause pain, it is advised to get this check out by your local MD.

    Hope this helps! ❤️

    -Megan @ AlgaeCal

  83. VickiP

    November 10, 2020 , 6:24 pm

    Thanks so much for all of this information. Life is much easier with you on my side.

  84. Megan AlgaeCal

    November 11, 2020 , 2:53 pm

    Thank you for sharing such sweet feedback, Vicki!

    Hope you enjoy the rest of the nutrition articles as well as the recipes and exercises on our blog 😀

    -Megan @ AlgaeCal

  85. 0RA

    December 3, 2020 , 3:53 pm


  86. Megan AlgaeCal

    December 4, 2020 , 9:21 am

    Glad you enjoyed the information, Ora!

    If you’re interested in more bone health information, feel free to check out the rest of our blog here. 🙂

    -Megan @ AlgaeCal

  87. Steve Hunt

    December 9, 2020 , 6:11 am


    Do you think I am low in calcium although my blood tests show my calcium levels are normal, I have been suffering from insomnia but if I take calcium at night I sleep deeply. Apparently there is an link between sleep and calcium. I am milk intolerant so don’t eat diary foods etc
    Steve Hunt

  88. Megan AlgaeCal

    December 11, 2020 , 10:25 am

    Hi Steve!

    We would recommend checking in with your doctor or a natural health practitioner about the possible causes of your insomnia. It’s possible that calcium is helpful because it helps with converting the amino acid tryptophan into melatonin. Hope this information is somewhat helpful and that you’re able to enjoy restful sleeps again soon! ❤️

    -Megan @ AlgaeCal

  89. Daniel Sauspan

    December 23, 2020 , 6:23 am


    First of all thank you for the information doc.

    Does (severe) calcium deficiency also cause hair loss? Since its known that a vitamin D deficiency causes hair loss or even alopecia, now lets say you have optimal vitamin D status but you are still calcium deficient(maybe from a lack in diet), will you still lose hair? As in, does vitamin D’s role in calcium homeostasis directly and significantly affect hairloss, or is it other factors like hormonal influence etc from vitamin D that affects it apart from the calcium?

    Thank you☺️

  90. Blaire AlgaeCal

    December 24, 2020 , 11:10 am

    Hi Daniel,

    Great question! Yes, unfortunately, calcium deficiency can cause hair loss. You can read about it here.

    Hope that helps! ❤️

    – Blaire @ AlgaeCal

  91. Winnie

    February 21, 2021 , 5:54 pm

    Hello Megan,
    Thank you for the information. About two years ago I started having tingling in my fingers. Little by little pain and muscle spasms press throughout my body. I was very anxious and irritable as I had a lack of sleep from being awakened by spasms. I’m 64 and was just diagnosed with osteopenia after decades of taking statin drugs and including very little calcium in my diet. I now consume more calcium both in my diet and in supplements along with vitamin D. I hope others will read your article and learn before it is too late.

  92. Megan AlgaeCal

    February 23, 2021 , 9:56 am

    Thanks for sharing, Winnie.

    We’re glad you enjoyed the article and we hope that your pain and spasms have since eased up ❤️ If ever you have questions about bone health, don’t hesitate to reach out to our Bone Health Consultants at 1-800-820-0184 or [email protected]!

    -Megan @ AlgaeCal

  93. Kristi

    July 24, 2021 , 8:22 am

    I have started drinking S. Pellegrino sparkling natural mineral water with lime juice in place of wine/alcohol. Is this bad for my bones due to the carbonation?

  94. Megan AlgaeCal

    July 27, 2021 , 12:30 pm

    Hi Kristi, this sounds like a great alternative!

    It isn’t the carbonation in soda-type drinks, but rather additives like phosphate, sugar, etc. that are harmful to bone health. Plain sparkling mineral waters are just fine – and adding lime juice for flavor is a wonderful idea!:)

    Hope this helps!

    – Megan @ AlgaeCal

  95. Margaret Jaeger

    August 24, 2021 , 8:00 pm

    The first signs are what I have had so much of my life..but from over calcification and not enough magnesium. I also tskemD3 and anything else that would help but my body will not assimilate calcium supplements very well. My calcium blood test was ‘fine but mag was low. And I hadn’t had a cal supp for 6 weeks or more due to the troubles long term use of cal,supps caused.

  96. Ishneet AlgaeCal

    September 1, 2021 , 11:06 am

    Thanks for reaching out, Margaret!

    Traditional calcium supplements often come as 1000 to 1200 mg of calcium on their own (or calcium with vitamin D). This can lead to excessive levels of calcium supplementation – without the right balance of other bone-supporting nutrients. AlgaeCal provides 720 mg of calcium that is much more effectively absorbed and used. See, AlgaeCal contains a naturally occurring trace mineral complex similar to the composition of our bones. It also provides additional vitamins and minerals which help in the absorption and direction of calcium. For example, vitamin K2 helps direct calcium into your bones and away from soft tissues like the heart! We also take into consideration that people will be getting about 500 mg of calcium from their diet – this means that you’re reaching the recommended amount of calcium all through natural sources! Please feel free to reach out to us over the phone at 1-800-820-0184 (USA & Canada toll-free) 5am-4pm PST on weekdays and 6am-4pm PST on weekends. We would love to hear from you! ❤️

    -Ishneet @ AlgaeCal

  97. Peggy

    September 15, 2021 , 11:20 am

    I have taken a bone medication for seven years due to Osteopenia and recently stopped as my DEXA scans numbers are getting worse and I fell and broke my hip. Will this product help to build bone if you have been on Ibandronate Sodium or is the damage done? They are wanting me to start another bone medication and that scares me. Thanks for any insight or information.

  98. Ishneet AlgaeCal

    September 24, 2021 , 12:25 am

    Thanks for reaching out, Peggy!

    AlgaeCal is a complete bone health supplement that’s clinically supported to increase bone density and we recommend it as part of every bone health regimen.That said, we suggest speaking to your doctor about changes to your medication and supplement intake. We have an excellent information sheet you can share with your doctor here. Feel free to call our Bone Health Consultants at 1-800-820-0184 (USA & Canada toll-free) 5am – 4pm PST if you have any questions! 🙂

    -Ishneet @ AlgaeCal

  99. Nandini

    November 12, 2021 , 12:11 pm

    Hi, I’m nearly 40. I breastfed my elder child for over 3.5 years and am currently nursing my 2.5 month old. While I don’t have any of the described symptoms yet, I want to preempt bone density loss. Is this product for me ? If yes, which of the products? Also how long should I be consuming it? Can I have it while breastfeeding ? Thank you.

  100. Ishneet AlgaeCal

    November 22, 2021 , 2:50 pm

    Hi Nandini!

    Thanks for reaching out with your question! If you’re looking to maintain strong, healthy bones, we recommend AlgaeCal Plus. However, if you are breastfeeding we recommend consulting with your physician to see if AlgaeCal Plus is right for you at this time. We have an excellent information sheet you can share with your doctor here. Hope this helps!

    -Ishneet @ AlgaeCal

  101. Heidi

    December 14, 2021 , 11:55 pm

    Hi, my 25 yr old son was diagnosed with osteoporosis, (-4.1 lumbar z score and -2,6/-2,.7 femoral neck). He is strictly tube fed, so altering his diet is out of the question, his daily intake of formula includes 2800 mg calcium (Calcium Phosphate, Calcium Pantothenate) plus a wide variety of other nutrients. We also add 6,000 iu of D3. Would love to see if there is anything else nutritionally we can supplement, but not sure he really needs anymore calcium at this point, as his labwork shows he is getting sufficient amounts and we cant exactly replace what is in his formula (called compleat pediatric, uses some real foods as part of the formulation). Is there any benefit that you can share for me to discuss with his team regarding adding this product to his regimen? Thanks!

  102. Kirby Johnson

    December 17, 2021 , 2:47 pm


    We’re so sorry to hear of your son’s diagnosis – thank you for providing us information on his circumstances. Aside from calcium, our formulation provides 13 minerals and 3 vitamins needed for healthy bones. This includes nutrients that help with proper calcium absorption and assists in placing calcium directly into your bones. This complete formulation is clinically supported in 3 human clinical studies to increase bone mineral density and we’ve helped thousands of people do so. While your son may not be able to take our supplements directly, we’d advise discussing certain components of our formulation with your doctors to determine if they would be appropriate to add to your son’s intake. You can read more about these ingredients HERE. Wishing you all our best – please don’t hesitate to let us know if you have further questions!

    – Kirby @ AlgaeCal

  103. Kelly Metzger

    March 10, 2022 , 3:34 pm

    I was skeptical about taking this product but knew I needed to get away from rock-based calcium, as my body was not absorbing it. I start 3 weeks after my bone density (2020). I have osteopenia, but because of my numbers, the location, and the difference between the numbers in different areas (if I am understanding what they are telling me) the dx is osteoporosis. I started algaecal and strontium, PLUS bone med infusions and walking 30 min x 5 days/week.
    I just got the results from my 2022 dexa – scan – 38% improvement!!!! YAY! I am reordering as we speak. :))

  104. Kirby Johnson

    March 11, 2022 , 9:04 am


    We are thrilled with the results you’ve seen over the past two years! Thank you so much for taking the time to share your results with us <3 Congratulations! We're looking forward to even further increases in the years to come. As you continue on your bone-health journey, we hope you'll take advantage of all the free resources available on our blog HERE. And we’re always available to support you 🙂 Don’t hesitate to reach out!

    – Kirby @ AlgaeCal

  105. Christine Wilson

    July 24, 2022 , 11:10 am

    A doctor took away one of my parathyroids because it wasn’t functioning properly. It improved my calcium levels tremendously; I also take vitamin D 2x a day

  106. Chelsea Dugas

    July 25, 2022 , 12:43 pm

    So very happy to hear you are doing better, Christine! If ever you have any questions, please feel free to reach out to our Bone Health Consultants, 7 days a week, at 1-800-820-0184 (USA & Canada) or by email at [email protected].

    To your health,

    – Chelsea @ AlgaeCal

This article features advice from our industry experts to give you the best possible info through cutting-edge research.

Prof. Didier Hans
PHD, MBA - Head of Research & Development Center of Bone Diseases, Lausanne University Hospital CHUV, Switzerland,
Lara Pizzorno
MDiv, MA, LMT - Best-selling author of Healthy Bones Healthy You! and Your Bones; Editor of Longevity Medicine Review, and Senior Medical Editor for Integrative Medicine Advisors.,
Dr. Liz Lipski
PhD, CNS, FACN, IFMP, BCHN, LDN - Professor and Director of Academic Development, Nutrition programs in Clinical Nutrition at Maryland University of Integrative Health.,
Dr. Loren Fishman
MD, PhD - Medical Director of Manhattan Physical Medicine & Rehabilitation and Founder of the Yoga Injury Prevention Website.,
Dr. Carole McArthur
MD, PhD - Professor of Immunology, Univ. of Missouri-Kansas City; Director of Residency Research in Pathology, Truman Medical Center.,