A seemingly harmless dietary supplement can have serious consequences when taken in large amounts.

Vitamin D supplements are among the most widely used in the United States, especially among people who don’t get enough sunlight or vitamin-D-rich foods. Health experts say daily supplementation can ...

Add Yahoo as a preferred source to see more of our stories on Google. While most people don’t get enough vitamin D—a nutrient that’s crucial for bone and muscle health—it is possible to get too much.

Many people supplement with vitamin D, especially during the colder months when it’s more difficult to get your daily dose from sunlight (since your skin makes vitamin D with sufficient sunlight ...

Vitamin D is particularly important for women, supporting bone health and pregnancy. Learn about vitamin D, its benefits, how much women should have daily, and more.

Online chatter claims that vitamin D should always be taken with vitamin K2 because it directs where vitamin D goes in the body.

Taking vitamin C and D together boosts your immune system and supports bone health. Both vitamins may enhance wound healing and prevent infections.

Add Yahoo as a preferred source to see more of our stories on Google. Vitamin D is great for your bone health, immune system, cell production and more. More recent studies are supporting the theory ...

Vitamin D is often called the "sunshine vitamin" because it is made by the body after the skin receives direct sun exposure. This fat-soluble vitamin is also available from certain foods such as fatty ...