People who are on the lower end of normal or just below normal may benefit from taking 5,000 to 10,000 IU of vitamin D, ...

Feb. 3, 2025 — Maternal vitamin D levels in the first trimester were related to both prenatal growth and pregnancy outcomes, according to a new study. Low vitamin D levels during the first ...

In some countries, vitamin D is listed in micrograms, and the relationship is as follows: 2.5 mcg (micrograms) = 100 IU. 5 mcg = 200 IU. 10 mcg = 400 IU. 15 mcg = 600 IU. 20 mcg = 800 IU.

1. Bone Health Vitamin D3 plays a crucial role in the formation and maintenance of strong, healthy bones. This vitamin is important for bone health because it: Low calcium intake and vitamin D ...