A surprising study suggests vitamin D2 supplements may reduce the body’s levels of vitamin D3 — the more effective form of ...

A new study is challenging the effectiveness of vitamin D in preventing falls in elderly people. For years, calcium and ...

Vitamin D dips in winter as sunlight weakens, but a study of runners and non-runners found outdoor exercise helped protect levels naturally. Supplements supported immune balance, yet they did not ...

America's favorite dietary supplements, multivitamins, modestly lowered the risk for cancer in healthy male doctors who took them for more than a decade, the first large study to test these pills has ...

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 ...

Vitamin C is among the most commonly taken supplements on earth, yet roughly 42% of Americans have inadequate vitamin C ...

Researchers at Shibaura Institute of Technology synthesized hybrid vitamin K molecules that produced neurons at three times ...

Vitamin D3 and vitamin K2 work together to support bone strength, improve calcium use, and help maintain healthy bone density ...

New research suggests vitamin C may play a role in lowering cancer risk by reducing harmful compounds in the body and ...

America's favorite dietary supplements, multivitamins, modestly lowered the risk for cancer in healthy male doctors who took them for more than a decade, the first large study to test these pills has ...