People age 50 and older taking 2,000 IU (International Units) of vitamin D3 for over five years had a 22% lower relative rate of confirmed autoimmune diagnoses, said study author Dr. Karen Costenbader ...

Sunlight and diet provide most of our vitamin D, but in modern life, many people struggle to maintain optimal levels. Whether it's due to indoor lifestyles, limited sun exposure, or dietary gaps, ...

What is vitamin D3? Your body creates this vitamin naturally when exposed to sunlight. In the winter, however, we tend to stay inside more, making it harder to get the proper amount of D3. There are a ...

It’s well known that vitamin D is crucial for maintaining strong bones. The nutrient helps your body absorb and retain calcium and phosphorus, minerals used to build bone. It also plays an important ...

In a new study, women who were given vitamin D3 and calcium supplements had 30% lower risk of cancer than women taking placebos. The difference did not quite reach statistical significance. However, ...