I buy vitamins. It’s because of a vitamin deficiency identified by my yearly doctor visit. When I am good about taking them, my numbers come back good. When I a

I buy vitamins. It’s because of a vitamin deficiency identified by my yearly doctor visit. When I am good about taking them, my numbers come back good. When I am not, she reports a deficiency again. I don’t guarantee my life would be worse if I continued my vitamin D deficiency, but my doctor suggested I fix it and CVS sells me the fix. Certainly not a useless product until the scientists tell me my doctor is a quack.