To get rich, strong and shiny hair, you must follow a healthy and balanced diet. Fruits have always been a good source of vitamins and nutrients. A healthy diet not only nourishes your body and helps you get through the day, it also helps you look your best. Your appearance -- from your posture to your. Sudden weight loss can impact the health of your hair; Eat foods which are . Why it's good for you: Lentils are a good source of zinc and biotin.