Pre-workout supplements may be helpful for some athletes, but they carry the risk of side effects that may affect your heart, digestion, and more.

Apple cider vinegar is an acidic drink. Consuming too much can cause side effects, such as stomach irritation, acid reflux, ...

Researchers discovered that the common amino acid arginine can block harmful Aβ aggregation and reduce its toxic effects in ...

Dark chocolate increases the risk of side effects of many dietary supplements, and can keep the body from absorbing others. Here's what to watch for if you eat it regularly.

Human clinical trials reveal that black cumin has anti-obesity and heart-protective effects. Nigella sativa (black cumin) is best known as a flavorful spice used in dishes like korma and paneer, but ...

Hyaluronic acid supplements may make your skin healthier and appear more youthful than topical products. They may also benefit your joints, eyes, and hair.

Dr. Pollock explains that most over-the-counter fish oil supplements are made mainly with saturated fat, which is actually ...