Medically reviewed by Alex Yampolsky, PharmD Zinc is a mineral found in food and taken as a supplement. It can help with cold ...

Medically reviewed by Lindsay Cook, PharmD High doses of magnesium glycinate may cause diarrhea, gas, or stomach pain.Very ...

Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

According to the University of Georgia’s Health Centre, there are two types of whey protein, including isolate and ...

Fish oil is generally safe but can cause side effects such as bad breath, diarrhea, unpleasant aftertaste, heartburn, and reduced immune function.

Androstenedione is one of those supplements that was peddled to athletes for years as a quick path to bulging muscles and high testosterone levels, but it comes with some serious side effects. Also ...

MiraLAX (polyethylene glycol 3350) is a brand-name powder that’s mixed into a beverage and taken by mouth. It’s available over the counter and can be used for constipation or before a colonoscopy as a ...

Rachael Link is a registered dietitian and health writer based in San Francisco. She completed her undergraduate degree at the University of Central Missouri and holds a master’s degree from New York ...