Soybeans

Soybeans are a rich source of vitamin B2, magnesium, and iron. Soybeans also inhibit the synthesis of dihydrotestosterone, which is known to cause damage to the hair. Soybean is a rich source of omega-3 fatty acids and contains manganese and vitamins, making dry and damaged hair healthy, shiny and strong. Hence, soybeans and their derivatives are good food for hair growth and thickness.