Vitamin D3 is a form of vitamin D that helps the body ... The recommended daily allowance for vitamin D is between 400–600 IU ...

Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is ...

Vitamin D3 supplementation was associated with antihypertensive effects without significant between-dose differences among overweight older adults.

The oral drops and solution, made by TriOn Pharma, contain higher levels of D3 than written ... units (IU). One microgram of vitamin D is equal to 40 IU, so 10 is the same as 400.