Nuts supply zinc which promotes stronger hair and stimulates healthy hair growth. Do not forget the greens, as they are loaded with Vitamin A to relieve itching and scalp dryness and Vitamin C which may retard hair loss. Also, whole grains are rich in silicon which prevents brittle hairs. Vitamin Bs from meat and mushrooms can help delay the onset of gray hair. Lastly, keep your diet low in unhealthy fats, as excess fats consumption leads to oily hair.  Beauty starts within, so begins with a healthy natural diet for healthy hair!