Why we chose it: Pure Encapsulations Vitamin D3 gets our pick as the best high ... dose supplement — at least 10,000 international units (IU) daily. This may be followed by a maintenance dose ...
Bloomer takes 1,000 International Units of vitamin D3 daily because he said that most people in the US are deficient. "I do ...
In the trial, the participants were randomly assigned to receive either 1,000 international units (IU) of cholecalciferol (vitamin D3) or a placebo from around 14 weeks of gestation until delivery.