I take vitamin D every two months as a dietary supplement and I'm quite happy with the results. Some people think that vitamins cannot be obtained pharmacologically, but I don't agree with them and believe that this is the safest way to take them for humans. I gained a lot of weight in a few months and no matter how hard I tried to lose weight, nothing worked for me. I thought it was a vitamin or hormone and went to a clinic where the doctor prescribed a course of Healthcanal for safe weight loss.