Vitamin D has two forms: vitamin D2 (ergocalciferol) derived from plant-based sources and vitamin D3 (cholecalciferol) found in some fish and meat and produced by your body when exposed to sunlight.

Vitamin D experts now believe we need at least 1000 IU’s a day to keep blood levels at a healthy level. Vitamin D3 (“cholecalciferol”) is better at keeping your blood levels up than vitamin D2 ...

“There are two main dietary forms, vitamin D2 (ergocalciferol) and D3 (cholecalciferol). Either form is fine to use but they need to be activated inside the body to 1,25-dihydroxyvitamin D.

What does that mean? Vitamin D2 is from plants, it's ergocalciferol. It comes from plants that are irradiated by sunlight, and a lot of vegetarians prefer a multi-vitamin that has a plant form of D.

There are two types of vitamin D supplements available for over-the-counter purchase (vitamin D2 and vitamin D3). Vitamin D3 is the type that most experts believe should be utilized in clinical ...

Find all the commercial and brand names of generic drug called Ergocalciferol (Vitamin D2). This is an invaluable reference resource for healthcare professionals, patients, caregivers and anyone ...