Magnesium, potassium, or sodium? Learn what each electrolyte does, signs of low levels, and when a supplement may help.

If you’ve ever looked at your food’s nutrition facts, you might have noticed that they all list potassium. There’s a reason for that – it’s considered a "nutrient of concern" since so many Americans ...

The essential mineral is key to heart, muscle, and nervous system function, with one major caveat: Your body doesn’t make it, ...

You've likely heard about the importance of getting your vitamins since childhood. Running through a checklist of ones you need can feel like a trip through the ABCs. Vitamin A from oysters and milk ...

A doctor explains side effects to watch for if you're trying to figure out whether you're taking too many supplements, and ...

With specific regards to their functions, kidneys are vital organs that filter approximately 200 liters of blood daily to ...

Dietitians recommend Americans get their nutrients through food, not supplements. I tracked my daily nutrient intake for a week to determine whether I was eating enough through food. A dietitian told ...