Vitamins & Supplements Archive

Despite statements like "promotes heart health" on the labels of fish oil supplements, multiple randomized trials show no evidence of heart-related benefits from using these products. In addition, manufacturing methods might make the products either useless or even harmful. The supplements do provide omega-3 fatty acids, but people can get these essential fats by eating two servings of fatty fish weekly or following a vegetarian diet rich in healthy oils, nuts, and seeds.

Ads for products that promise to supercharge the body's immune system make claims that sound too good to be true. But do these products actually work? 

The general consensus is that healthy people who eat right need a vitamin or mineral supplement only if they have a diagnosed vitamin or mineral deficiency. Still, multivitamins may provide a safety net to fill dietary nutrition gaps even for people who mostly eat healthy. Studies have shown that taking multivitamins as prescribed usually doesn't cause any serious issues, and many over-the-counter brands are relatively inexpensive. Some people also view taking a daily multivitamin as another way to support a healthy lifestyle.

Increasing evidence suggests that people who take a daily multivitamin pill have a lower risk of cognitive decline compared with people who don't take multivitamins. In particular, two randomized controlled trials published in the spring of 2023 found that people older than age 60 who take a multivitamin are less likely to experience a slight age-related cognitive decline, at least over the next three years, compared to those taking a placebo. The benefit appeared to be particularly true for people who had cardiovascular disease.

According to the FDA, many sexual enhancement products sold online and over the counter may cause potentially serious side effects and interact with other medications or dietary supplements.

There are many ways one can try to avoid constipation. For example, lifestyle remedies may help—such as increasing dietary fiber, getting regular exercise, and drinking three to six cups of water per day. If those approaches don't work, doctors recommend using fiber supplements, such as psyllium husk (Metamucil), methylcellulose (Citrucel), or wheat dextrin (Benefiber). Another supplement that might help is magnesium. When all strategies fail, it may be time to try over-the-counter medication. One option is an osmotic laxative such as polyethylene glycol (Miralax).

Recently published research suggests that a daily multivitamin may improve memory enough such that it can function as if you were three years younger. We take a closer look at the study.