My problem with vitamins and supplements is that the vast majority of people who take them are self-diagnosing a deficiency or listening to random people on the

My problem with vitamins and supplements is that the vast majority of people who take them are self-diagnosing a deficiency or listening to random people on the internet who think they're able to parse studies on their own. For anything: go to your doctor, get blood work done, and listen to their advice. Don't just go to CVS and pick up some pills and go to town after reading about Vitamin D on HN.