All those supplements and vitamins you take aren’t really doing anything

More than half of American adults take dietary supplements, but most don’t really do much for your heart or fight against death. In fact, some might even harm you, according to new research.

Dietary changes and even supplement intake like multivitamins and antioxidants don’t do much for you, as a study, published in the Annals of Internal Medicine, took a larger look at vitamins and supplements, along with diets as well. In total, information gathered from nearly a million participants worldwide as researchers compared these dietary phenomenons to medical conditions like coronary heart disease, stroke, and heart attack, as well as death.

Follow Ladders on Flipboard!

Follow Ladders’ magazines on Flipboard covering Happiness, Productivity, Job Satisfaction, Neuroscience, and more!

Participants were put through more than 270 trials which had participants take different supplements or try a different diet. Their data were compared to control groups.

Supplements like omega-3 fatty acid supplements, which are often found in fish supplements, and a low-salt diet did show possible health benefits, according to analysis. But supplements containing both calcium and vitamin D increased the risk of stroke.

But the most stunning revelation was how supplements like multivitamins, selenium, vitamin A, vitamin B6, vitamin C, vitamins D, calcium and iron showed no increased or decreased risk of cardiovascular disease or early death.

“The panacea or magic bullet that people keep searching for in dietary supplements isn’t there,” said senior author of the study Erin D. Michos, M.D., M.H.S. “People should focus on getting their nutrients from a heart-healthy diet, because the data increasingly show that the majority of healthy adults don’t need to take supplements.”