The “daily value” for vitamin D is 400 IU’s (International Units). But that level is not based on the newest ... Vitamin D supplements usually come in doses of 400 to 2000 IU’s per pill. Look for ...

For example, a large study including more than 18,000 people with depression found that taking 2,000 international units (IU) daily of vitamin D for five years did not change depression scores ...

As a rule, younger people need less vitamin D than older people, regardless of sex. This article explains average vitamin D ...

With over half of us not getting enough of the ‘sunshine vitamin’, we look at the ... the recommendations are between 400 IU and 2000 IU [international units], but 800-1000 IU is the most ...