I'm 23 years old. currently taking vitamin d3 (1000ui), vitamin b complex, and panax ginseng. what's the ailu dosage of vit d3? i don't get much sun.

Vitamin D level: Knowing your vitamin d level would be helpful. If you are deficient (and depending how deficient), you will need supplementation so that you can get your level back to normal. If your vitamin d level is normal, then you may want a maintenance dose. D3 is cholecalciferol, a standard form that is taken orally. D2 is ergocalciferol, if taken is in a large 50k international unit (iu) dose once weekly.