What is vitamin d3 vitamin d3 is a mineral that can be sourced through ultraviolet beta rays benefits of vitamin d3 vitamin d3 contains 2500 iu and has 180 servings with 1 serving needed each day who is vitamin d3 suitable for vitamin d3 is suitable for all individuals who want to increase their daily vitamin d3 intake this statement has not been approved by the fda please note that the labelling on this product is provided in english as a minimum french italian german spanish