I went to my doctor complaining about the general lack of energy. Turned out to be Vitamin D. I grew up in the tropics and the lack of sun had put me under a se

I went to my doctor complaining about the general lack of energy. Turned out to be Vitamin D. I grew up in the tropics and the lack of sun had put me under a severe deficiency. Had to take prescription strength to get to normal. Since then that’s one supplement I never miss.