5. Vitamin D
Alopecia areata or bald spots have been well documented as being linked to vitamin D. This is largely an autoimmune disease – hair follicles are very sensitive to hormone fluctuations. Vitamin D is a hormone that is vital to cell growth, among other things. Not only is the incidence of spot baldness found to be lower in those who take adequate vitamin D supplements, but the severity of the baldness was also found to be lower as well. Nutrition for the hair follicle starts from within the body and this is crucial to note when taking vitamin supplements.
The best way to get vitamin D is through direct sun exposure. 10 000 units of natural vitamin D can be absorbed by being in the sun for 10 to 15 minutes. You could also try applying vitamin D to your scalp. Foods rich in vitamin D include halibut, mackerel, eel, salmon, whitefish and several kinds of mushrooms.