Vitamin D vs. D3: What’s the Difference?
Vitamin D2 comes from mushrooms and fortified foods. Of the two forms, vitamin D3 is generally considered most effective for raising and maintaining vitamin D levels. However, both forms are beneficial for your overall health. Edwin Tan / Getty Images That means some supplement products may not contain what the label says. Edwin Tan / Getty Images What Is Vitamin D? Vitamin D is a micronutrient that is important for human health....