Vitamin D supplements are popular for bone health and immunity. When is the best time to take vitamin D? Here's how to take ...

Most vitamin D3 supplements available over-the-counter are sold in dosages between 1000–5000 IU, but some are higher. “Ask ...

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 ...

Vitamin D2 aids calcium absorption, strengthens bones, and supports immunity. Found in plants, it's used to treat vitamin D ...

Vitamin D3 is produced when the skin is exposed to ... People who are deficient may need to take more. Most over-the-counter vitamin D supplements are between 1,000 and 5,000 IU, and some are ...

Is Vitamin D2 as effective as Vitamin D3? While both can raise vitamin ... for severe deficiency and as an over-the-counter supplement in lower doses.