Vitamin A
Foods rich in Vitamin A tend to be rich in beta-carotenes. Eating for your hair will be good for your body in general. Beta-carotene is good for eyesight, immunity, and helps to prevent cancer.
To increase your beta-carotene intake, focus on orange food. Carrots, sweet potatoes, winter squash and our old friend, spinach are high in beta-carotene.
Focus on eating foods raw (when appropriate) because the cooking process will decrease the amount of beta-carotene in the food.