Can vitamin d increase testosterone, if so how much do i need to take?

Vit D and testostero: Vitamin d has many beneficial effects on the body, but it does not increase testosterone.

Deficiency States: If your vitamin d levels are low, then it should be treated with vitamin d if your testosterone levels are low, then it should be treated with testosterone. I can't think of any protocols that call for the reciprocal use of vitamin d for testoserone deficiencies and vice versa. In either case, the deficiency state must be confirmed by lab analysis.