The goals of treatment and prevention of Vitamin D deficiency are the same—to reach and then maintain an adequate level of vitamin D in the body. 1. While you might consider eating more foods containing vitamin D and getting a little sunlight, you will likely be told to take vitamin D supplements. 2. Vitamin D comes in two forms: D2 and D3. D2, also called ergocalciferol, comes from plants. D3, also ca  Read More