Find out the differences between water-soluble vitamins and fat-soluble vitamins, and discover the types, sources, benefits, and how they may affect health.

Vitamins A, D, E, and K are all fat-soluble and can be found in many everyday plant and animal foods, and in dietary supplements.

The nine water-soluble vitamins play important roles in many body functions. Here’s how to get enough through food and supplements.

Whether you consume vitamin water or electrolyte drinks regularly or not, experts say you should know what's in them before you take a sip.

There are nine water-soluble vitamins in the human diet. This article examines each in detail, letting you know the best sources and how much you need.

Fat-soluble vitamins — A, E, D, and K — require fat to dissolve and be absorbed by the body. Here's how to get enough in your diet.

Bottled waters are being marketed with vitamin supplements and energy sources, all in one bottle. But is this stuff really all it’s cracked up to be?

Water-soluble vitamins dissolve in water; they are packed into the watery portions of the foods you eat. Vitamin C and the B vitamins are water-soluble vitamins, for example.

Calcifediol, a new oral formulation of vitamin D3, is better absorbed by people with obesity or malabsorption than standard vitamin D3, according to a small pilot study.

Water-soluble vitamins like B-6, C, and folic acid are easily absorbed by the body. Your body uses the vitamins it needs, then excretes excess water-soluble vitamins in urine.

Unlike fat-soluble vitamins, water-soluble vitamins don't get stored in the body; instead, they dissolve in water. They enter the bloodstream and are immediately absorbed into the tissues for use.

Only 4 vitamins are fat-soluble: A, D, E, and K. Learn how to meet recommended targets of these nutrients through your diet.