Looking to keep your hair healthy, try starting with what you eat. Studies show that deficiencies in nutrients including, iron, vitamin D, zinc, protein or essential fatty acids can cause hair loss or weak strands. Eating foods that will keep your hair at it’s healthiest is the way to go. Eating Legumes like lentils, kidney beans and others can be an easy and important part of your hair-health diet. As well as protein to help promote healthy hair growth, they provide iron, zinc and biotin, an important B vitamin that is a key component for strong hair and nails. Dark green vegetables such as kale, spinach and broccoli also contain both vitamins and iron that help maintain a strong, healthy head of hair.