★★★★★
Finally I went to my doctor and told him to test me for several vitamins and minerals. My zinc was significantly low (in the 40s), even though I ate meat. For some reason my body was not absorbing zinc through foods. I began supplementing with zinc sulfate and within a few days the hair loss stopped. I retested my levels a couple months later and it had gone up to 72 (optimal levels is about 90). My hair no longer falls out and the bald patches I was starting to get before have filled in. If you are losing your hair it is most likely a deficiency, like iron or zinc. Get tested.
Zinc
★★★★★