Tag: Vitamin d forms

While most people are familiar with vitamins D2 and D3, many are unaware of the existence of vitamin D4. This lesser-known form of vitamin D is found almost exclusively in specific types of mushrooms, but what contains vitamin D4 and how significant is it for human health?

According to the National Institutes of Health, nearly half the world's population may have insufficient levels of vitamin D. When choosing a supplement, a key question arises: which is better, D3 softgels or tablets, for effective repletion?