If you find that you are having problems with your hair, the first thing to do is to cut out wheat from your diet. Over 80% of my clients who have my hair/nail sample tests done have a problem with wheat. Some of them have a problem with all grains (rye, barley, oats etc).
Have a think about what you are eating for a typical breakfast, lunch and dinner. If your diet consists of muesli, sandwiches, pizza and pasta, this will have a major negative impact on your hair, even if you don’t have a wheat intolerance. What you need to eat is a little meat, plenty of vegetables and some carbs such as rice or potatoes. I know that this is inconvenient, especially for breakfast, but you are actually better off with bacon and eggs or an omlette for breakfast than with a muesli if you want to help your hair.
Foods you need to avoid are bread, pasta, pizza, biscuits, cakes, pasties and anything else that is made from wheat or gluten-free wheat. It is not enough if you change to gluten-free wheat as many people are not just intolerant to the gluten in the wheat but also to the rest of the grain.