Are multivitamins really an efficient way to get all the nutrients you need? We asked a dietitian to find out.

Multivitamins offer little benefit for most healthy people who eat a balanced diet. Specific groups may benefit, including pregnant people, older adults, and those with restrictive diets or conditions ...

Too much vitamin D, or vitamin D toxicity, happens due to a buildup of calcium in the blood (hypercalcemia), which can be ...

A study found that daily vitamin D supplements helped slow telomere shortening—the cellular process linked to aging and disease. Researchers believe its anti-inflammatory effects may protect DNA.

Which vitamin D supplements are best? There is nothing quite like enjoying some fun in the sun to provide your body with some much-needed vitamin D. If you cannot be out in the sun, have a milk ...