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- A new study, published June 8 in Annals of Internal Medicine, further suggests that investing in pills and powders for supplements will not reduce your risk of heart disease or prolong your life.
- The researchers examined over 100 previous studies including 16 types of supplements and found that only two types, folic acid and omega-3, reduced the risk of heart disease.
- Vitamin D and calcium supplements have been found to increase the risk of stroke.
- Visit the INSIDER homepage for more.
There is plenty of evidence to suggest that making vitamin reserves to stay healthy is a waste of money if it is not harmful to your health, and a new robust study adds even more weight to this argument.
The meta-badysis, published June 8 in Annals of Internal Medicine, included 105 previous studies and examined 16 types of supplements (such as vitamin D and folic acid) and eight dietary habits (including the Mediterranean diet and a reduced salt consumption). the risk of developing cardiovascular disease, heart attack, stroke and coronary artery disease, as well as the risk of death, whatever the cause, in the individuals concerned during the reporting period. All included studies were randomized controlled trials, the most robust of the studies.
The researchers found that, overall, 14 of the 16 supplements were ineffective in reducing the risk of heart disease or the risk of death, no matter what the cause. These supplements include: antioxidants, B-carotene, vitamin B complex, multivitamins, vitamin A, vitamin B6, selenium, niacin, vitamin C, vitamin E, vitamin D, vitamin D with calcium, calcium and iron.
The only supplements that seemed helpful in reducing the risk of heart disease were folic acid, badociated with a reduced risk of stroke, and omega-3, badociated with reduced risk of heart disease. 39, myocardial infarction or heart attack. A low sodium diet was also badociated with a lower risk of attack, but no other diet seemed to affect the risk of illness.
"This study can help those developing professional cardiovascular and dietary guidelines change their recommendations, provide clinicians with an evidence base to discuss dietary supplements with their patients, and guide new studies to fill the gap in evidence." , wrote the authors of the study.
Vitamin D and calcium, when combined in a supplement, increase the risk of stroke
Most supplements had no effect, either positive or negative, on the risk of illness. But the combination of vitamin D and calcium actually increases the risk of stroke.
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A previous study, published in April 2019, also revealed that these two supplements could have potentially harmful effects. Researchers found that people who took vitamin D supplements without a vitamin D deficiency had a higher risk of cancer and death than those who did not take vitamin D.
They also found that people taking calcium supplements were more likely to develop cancer, but that eating calcium-rich foods had no effect on cancer risk. The researchers were unable to determine exactly why this was the case, but they theorized that excess calcium from supplements increased hormone production.
The new study had some limitations, including the fact that many of the studies previously badyzed by researchers focused on specific populations, such as all Chinese. This means that their conclusions can not be generalized to everyone, or even to all Americans, because lifestyle factors and diets differ between the two countries.
Two physicians not badociated with the study said that these new discoveries offer important information, but that further research was needed. "Unfortunately, this study leaves us with the same fog conditions that we have started with," wrote Dr. Amitabh C. Pandey and Dr. Eric J. Topol in their editorial review. "Until these conditions are met, it would be reasonable to suspend any dietary or dietary changes in all directives and recommendations."
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