For example, vitamin D3 is more effective than vitamin D2 at boosting blood levels ... for children younger and older than age 1. Pure Synergy D3 + K2 Complex is formulated with certified organic ...

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 ...

the human body is better able to absorb vitamin D3 than D2. So it's ideal to go for a D3 supplement. (You can read more about the difference between D2 and D3 in the FAQ section below.) ...

One study found that both vitamin D2 and D3 are as equally bioavailable in orange juice as taking vitamin D capsules, meaning the body can still absorb the vitamins well. Milk is another drink ...