Top 10 Foods for Healthy Hair

5. Shiitake Mushrooms

These small wonders are a top source of copper, which may help hair maintain its natural color, says Kazin. In fact, a 2012 study found that low copper intake could be linked to premature graying. There’s no standard RDA for copper, but the Mayo Clinic recommends a minimum of 1.5 mg per day. Half a cup of cooked shiitake mushrooms provides nearly half that amount (savor them in this easy wild mushroom burger). Seaweed and sesame seeds are also good sources.