U can buy the thing is that is ur body absorbing n assimilating it. For this u need good healthy digestive system. And if u have that then u don’t need supplements. The body gets
vitamin D through sun exposure and foods such as:
Soy products like tofu and soy chunks, mushrooms, oranges (Most fruits lack vitamin D with the exception of oranges.), Opt for alternative milk like soy.
Fatty fish, like tuna, mackerel, and salmon, Beef
liver, Cheese, egg yolks