Is it better to get nutrients from food or supplements?

Researchers have found that nutrients from food may be linked to lower risks of death, while excess intake of certain supplements may have the opposite effect.

Taking supplements leads to an increased level of total nutrient intake. Dietary supplements include vitamins, minerals, herbs, amino acids, and enzymes. Suppliers sell them in different forms, including tablets, capsules, powders, and liquids. Common dietary supplements include calcium, fish oil, and vitamin D.

According to the 2018 consumer survey conducted by the Council for Responsible Nutrition (CRN), consumer confidence in products and trust in the dietary supplement industry is strong among people in the U.S. The survey found that 75 percent of U.S. individuals take dietary supplements, as opposed to just 65 percent in 2009. "This year's data provide further evidence that dietary supplements are mainstays in modern day health and wellness regimens," explains Brian Wommack, the senior vice president of communications at the CRN. Vitamin and mineral supplements such as vitamin D and calcium remain the most popular types. However, the use of herbals and botanicals — especially turmeric — has significantly increased during the past 5 years.

The main reason that U.S. individuals take dietary supplements is overall health and wellness, according to the survey. Although many people use dietary supplements, a recent study found that multivitamins, vitamin D, calcium, and vitamin C showed no advantage or added risk in the prevention of cardiovascular disease or premature death. However, folic acid alone and B vitamins with folic acid may reduce the risk of heart disease. The team, from the Friedman School of Nutrition Science and Policy at Tufts University in Medford, MA, conducted a study to evaluate the association between dietary supplement use and all-cause mortality. The researchers have published their results in the journal Annals of Internal Medicine.