Vitamin D and Calcium Supplements Are Unnecessary: Too Much Can Cause Harm

November 30, 2010 7:38 am 15 comments

A new report by a panel of experts claims that most Americans and Canadians get sufficient vitamin D and calcium in their diets, and that supplementary vitamin D and calcium may do more harm than good. The report Calciumvitd_lg , issued by the Institute of Medicine of the National Academies of Science, states that most Americans and Canadians up to age 70 need no more than 600 international units (IUs) of vitamin D per day to maintain health, and those 71 and older may need as much as 800 IUs. The reports says the amount of calcium needed ranges, based on age, from 700 to 1,300 milligrams per day. The experts state that too much calcium from dietary supplements has been associated with kidney stones, while excessive vitamin D can damage the kidneys and heart.

Read more from the Institute of Medicine.



    It would be nice if all of the recomendations for levels that come out of these studies included a break down of not only age requirements but of levels of activity requirments. Surely extremely active hard trainers have different nutritional demands that may actually place them in a different population.

  • What a load of crap. Most people are SEVERELY deficient in vitamin D. Getting 20 minutes of sun will cause your body to manufacture 20,000 units or more. This is normal. To say that 60 units is adequate is lunacy. This is nonsense designed keep people sick.
    It’s a proven fact that adequate levels of will prevent 70-80% of all cancers and make you 100% resistant to the flu and manuy other diseases.
    This is criminally irresponsible to sya that 600 is enough.

  • I’ve been struggling with my vitamin D level for almost 2 years now. I am currently taking 100,000 IU’s per week because my level never stays up. I get so achy cause it drops so much. My level at it’s lowest was 12, normal is 35-100. Over the counter Vit. D does not work for me. So i get my level to normal range with prescription Vit. D and when i come off and try over the counter Vit. D, it only takes about 2 months to come right back down!! I think alot of people have the same problem, so i don’t believe this report!

  • Just plain stupid BS!Panel of experts!? ( institute of medicine) Look who posted this report. That should say it all right their! BY MOOR MEDICINE! NOT VITAMINS! We cant make any money if you don’t buy our medicine! Stop buying vitamins,they are not good for you! If you believe this BS Please stand on you’re head! – OLD SAYING- Don’t believe anything you hear,and half of what you read. Or is it anything read and half of what you hear? I for get!HA!HA!–HA! Have a Nice Day!

  • The amount you need should be based on what your body is designed to handle naturally. This should be 20,000 per day but 10,00 should be ok for most people if you are deficient, if you deficient double it 40k
    if you try to live in 600 or so a day you will always be susceptible to colds and flu and have a higher cancer risk.
    This propaganda intended to keep you hooked on Big Pharma’s expensive poisons.

  • “a panel of experts” my a$$
    how about a panel of doctors and pill pushers afraid of losing revenue from people being healthy.

  • I agree totally with the idea that we are misled all the time, being steered back to what makes this Industry profit. Selling med’s to people that are sick, or led to think they are sick. But honestly, the biggest reason that most of us are deficient in vitamins and minerals, both vital for good health, is our food supply. The crap they sell in the stores called food. Along with the way we are taught to cook, which destroys the nutrient content instead of eating raw to a degree. If we ate good food, limit the cooking process, got regular exercise, and plenty of sunshine we would never get sick, and certainly never need this poison they sell called medicine!

  • And I wouldn’t be surprised if those who listen to these pill pushers eventually think there is absolutely NO benefit to eating any food at all…..just take vitamin pills & supplements because they’re superior.

  • I think there has been a terrible mistake. As far as i know people are really deficient in Vitamin D and the calcium. Deficiency is more in America compared other places.

  • those Doctors are afraid of loosing the License they received from the Schools owned by the big Pharm. Co’s. They are taught to write scrip.’s or else! That is the way Western Medicine is taught, facilitated, and kept that way!

  • The key is to have a simple blood test to determine what your specific vitamin D level actually is. About a year ago I did just that. The doctor’s office called and told me my Vitamin D levels were fine. I asked for a copy of the test and my levels were 32, which was at the bottom of the normal range of 32-100. I then read the fine print underneath the test results and it said that most experts consider the 32 level to be the “threshhold” to better health. I then began to take OTC vitamin D supplements of 5,000 mg. per day. A few months later my levels are now at 50. Maybe it’s my imagination, but I have never felt better. I truly believe that our food supply is so processed and chemically manipulated that the nutritional content is very poor. As a a result I believe that we all have to supplement our foods.

  • A bloodtest is required. It proved that my sedentary husband and I (playing tennis 3 x/week) were both deficient in Vit.D. We continue to require high doses to maintain correct bloodlevels. It was a surprise to learn neither of us could assimilate D from other sources.

  • I think vitamin D and calcium are necessary. The problem is that too much intake of these vitamins might affect other parts of the body.

  • The average lifespan of doctors…53! Enough said!

  • The article and its conclusions are completely bogus. Finally some sanity…

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