Because it’s a fat-soluble vitamin, vitamin D will be better absorbed by your body when you take it with a meal or snack, ...

Another study found that people who had high levels of vitamin D in their diet had a 25% lower risk of developing colorectal ...

Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is ...

In fact, a 3-ounce serving of salmon may provide up to 570 international units (IU ... intake. Vitamin D exists in two main biological forms: D2 (ergocalciferol) and D3 (cholecalciferol).