If you take an iron supplement to fight deficiency, know that certain foods and drinks, medications, and other supplements could reduce how much you absorb.

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.

Medically reviewed by Kristie Reed, PharmD Vitamin C can help increase the absorption of iron from plant-based sources and ...

Health experts warn that combining certain supplements—or taking them at the wrong time—can block nutrient absorption, cause ...