Calcium supplements no good for bones


Will taking extra calcium make your bones stronger? Not really, according to new science. At the very least the effect of extra calcium on the bones is so tiny that it’s hardly worth the risk of side effects (like constipation and likely an increased risk of heart disease).

Talk to your doctor if you’re taking calcium supplements. In most cases it’s time to stop.

Time: Calcium Supplements Aren’t Doing Your Bones Any Good, Studies Say

Here are the new studies:


  1. greensleeves21
    Not sure we can make much of this - it's very tangled but does seem to support Masterjohn. Calcium supplementation won't help & can even be harmful if you don't have your vitamins A, D & K in order as well, as Dr. Chris Masterjohn has often noted. So you can give folks all the D & calcium, but without the right amount of K & A, it won't be effective.

    In light of this, it seems important to make sure you've got everything in order at the same time: D, A, K & calcium from fermented dairy, as well as small fish like sardines, as Masterjohn recommends. Magnesium may be important too.

  2. Elizabeth
    I found that meat and fat provide all the nutrients we need and that taking additional supplements is not necessary if you eat plenty of meat and saturated fat including butter and olive oil.
    It is a good idea to eat fish once a week, have bone broth sometimes and be sure you get enough salt.
    Nothing I have ever studied before has said that we get all the nutrition we need from meat and fat. I really studied that part a lot because I could not believe that so many authorities say we must have carbs and we do not need even one. If my dog eats grass, that means she has an upset stomach and she might chew on a blade or two of grass a little.
    It turns out that the authorities make a lot of money by selling us carbs we not only don't need but are actually harmful to us and that we can't even digest.
    Others make a lot of money selling us unnecessary and often harmful supplements.
    If all else fails, the carbs make us sick and the medical profession gets the rest of our money by giving us drugs that will never heal us but provide them with a steady income. They drug us, cut us up and burn us with radiation until we finally give up and die in despair.
    Then the undertakers get whatever they can.
    If they can't get our money one way, they get it another and our health is of no consequence to them.
    It is called health insurance, but there is no health involved in it. No one gets cured.
    Follow the money.
    If you hope to live a long and healthy life, then start taking responsibility for yourself and try to help the people you love to do the same.
    Reply: #8
  3. Tamarah
    the prescription drug companies,, and the processed food industry wants us Fat and Sick .. and they will all profit . I don't understand why people don't see this . Its all a conspiracy if you ask me. think about it !!
  4. Leroy
    Most health authorities recommend the intake of calcium to assist in the more complete bioavailability of magnesium (which is a very important mineral). Also when I have blood work done, it includes serum calcium levels (mine are always in range, and I supplement with a moderate amount of a very high quality type of calcium):

    The only animal foods that contain somewhat higher levels of calcium are eggs, fish, and cheese (also milk, but I do not consume milk due to its lactose content... only cream and butter). I am very carb sensitive so minimize intake of even leafy greens - and hard cheeses only in moderation. And I would prefer not to eat fish a lot of times (and when I do - probably twice a week - it is more often a lean fish smothered in butter, not an oily fish).

    Red meat is my primary forte and I don't see it containing a lot of calcium.

    What type of comprehensive research is there as to calcium causing heart disease? If that is the case, shouldn't foods high in calcium actually be avoided? What is the difference between "bone broth" (high in calcium) and powdered bone meal (gasp - a supplement) in a high fat protein drink - that is just an example, bone meal is actually a low bioavailabile source of calcium compared to the top forms so you'd have to take a lot more; the point being that they are both from animal bone sources.

    If anyone could provide links related to the calcium / heart problems connection (I wonder if it involves excessive calcium intake), it would be appreciated....

  5. Leroy
    For example, I found these - which specifically refer to HIGHER THAN NORMAL ranges of calcium levels (and more often than not as a result of Parathyroidism / Hyperparathyroidism). (*)

    (Note that double the risk can literally mean over five years that very high calcium intake - from ALL sources - can cause six heart attacks as compared to three heart attacks in those with lesser calcium intake!!!)

    (Note that the difference was reported as a 38% increase, which sounds scary, but the ACTUAL percentages of risk symptoms was 5.8% of the supplement group versus 5.5% for the placebo group).

    Also in one PDF file of a German study done in 2012, the calcium supplement level was 2000mg daily supplement for the risk group versus one group with no supplement and 500mg daily supplement in yet another group... while the first group did exhibit higher levels of serum calcium - generally not of of normal range - and a very small percentile increase (similar to shown in Harvard link), the other two groups were almost identical in serum calcium levels (and both groups also showed similar risk factor levels - only slightly less than first group).

    Also... aside from bone health, what other advantages does properly normal levels of calcium possess?

    BTW, as I just had full Labs done last month, I checked my copies off the Lab results and found that in a range of 8.5 - 10.4 mg/DL that my serum calcium level was 9.1 (right in midrange) and I supplement 600 mg daily.

    Just concerned about the panicky response of "The sky is falling, the sky is falling" as was noted not too long ago when studies "supposedly showed" that ANY type of Vitamin E was Evil...

  6. Leroy

    As to the specifics of this study:

    Michaëlsson and his colleagues analysed data from the Swedish Mammography study, which followed 61,443 Swedish women born between 1914 and 1948 for an average of 19 years.

    The study used death from all causes and cause specific cardiovascular disease (CVD) as markers and assessed dietary intake in the group using food frequency questionnaires at baseline (between 1987 and 1990) and again in 1997. From this data intakes of calcium were estimated by adding together dietary and supplemental calcium sources.

    “Follow-up was through the Swedish cause of death registry,” explained the researchers, adding that ‘complete linkage’ with the register is achieved using personal identity numbers that are provided to all Swedish residents.

    “The highest rates of death from all causes, cardiovascular disease, and ischaemic heart disease but not stroke were observed among those with a dietary calcium intake higher than 1400mg/day,” said Michaëlsson and his colleagues.

    These intakes, compared with dietary intakes between 600 and 1000mg per day, conferred hazard ratios of 1.40 for all-cause mortality, 1.49 for cardiovascular disease mortality, and 2.14 for ischaemic heart disease mortality, the team revealed.

    Hmmm... a questionnaire. I literally HATE those type of "studies" (as do a great number of renown researchers). Who can really remember? And what OTHER factors were involved? I know many smokers, for example, or take supplements in an effort to counter their smoking damage (just as an example).

    And also this:

    “In addition, mortality rates were higher among women with an intake below 600 mg/day,” said the team.

    Michaëlsson and his team attempted to explain the mechanism behind their finding by suggesting that that diets very low or very high in calcium can override normal homeostatic control causing changes in blood levels of calcium.

    (Both "too much" and too little? How logically can too little intake of calcium cause high buildup of calcium "plaque" in heart / circulatory system)


    Wallace of the CRN said: “It’s important to understand that this study did not demonstrate a cause and effect relationship between calcium and heart health or all-cause mortality, and in fact, we are not aware of a single human study that does.”

  7. Brad
    Get it from your food. A recent clinical trial compared spinach, sweet potato leaves and Moringa leaves. The bioavailability of calcium in spinach is apparently low. Bioaccessible calcium in sweet potato leaves was a non-significant 1.4 times higher than spinach. However, Moringa calcium was 9.2 to 19.4 times higher than in spinach.
  8. Amanda
    Wonderful summary.
    Thank you.

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