Nutritional Supplements Provide Little to No Heart Benefit, Study Finds

Study claims dietary supplements are not helping your heart at all

Study claims dietary supplements are not helping your heart at all

Researchers from West Virginia University analyzed 277 randomized controlled trials comprising almost a million people to determine the effects of 16 different nutritional supplements and eight dietary interventions on mortality and cardiovascular outcomes in adults.

Still, the authors conclude that there's enough evidence to suggest that people shouldn't start taking supplements just because they want to prevent heart problems.

"People should focus on healthy diet from nutritional food sources - not vitamins or supplements - in combination with a healthy lifestyle that includes regular physical activity and not smoking", he says.

Researchers from West Virginia University analysed 277 randomised controlled trials of close to one million people to determine the effects of 16 nutritional supplements and eight dietary interventions when it came to reducing the risk of cardiovascular disease in adults.

They considered these supplements: selenium, multivitamins, calcium plus vitamin D, beta carotene, iron, folic acid, omega-3 long-chain polyunsaturated fatty acids, calcium, antioxidants, vitamins A, B complex, -3, B-6, C, D, and E.

"These tests are grossly overused, with limited utility in select patients", he said. No significant effect on mortality or cardiovascular outcomes was seen for other nutritional supplements or dietary interventions.

However nearly everything else, including niacin, iron and a veritable alphabet soup of vitamins, "had no important effect on mortality or cardiovascular disease outcomes", in accordance with the evaluation, revealed Monday in the medical journal Annals of Internal Medicine.

Most of the vitamins, minerals, supplements and diets didn't protect against heart attack or stroke or reduce the risk of death from heart-related causes, researchers report in Annals of Internal Medicine.

The researchers found moderate-certainty evidence that lower salt intake reduced the risk for all-cause mortality in normotensive participants and cardiovascular mortality in hypertensive participants (risk ratios [RRs], 0.90 and 0.67, respectively). For instance, eating less salt may reduce the risk of premature death in people with a normal, although only with moderate certainty. Reduced salt intake seems to lower blood pressure, according to a 2013 review, and "the science behind sodium reduction is clear", according to the American Heart Association.

That method may not be the best way to study diet and heart disease, according to Lee.

Supplements combining calcium and vitamin D appeared to increase the risk of having a stroke by 17 per cent.

The scientists found that solitary a bunch of the dietary supplements alongside only one of the eight dietary intercessions had some defensive advantages against heart diseases. Some experts also warn that certain diets may not be good for the heart and only eating a healthy balanced diet is the key to overall health.

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