A diet rich in vegetables, fruit, fat or protein is another great way to help your hair regrow. Any deficiency in terms of dieting will definitely show in your hair first. Stress is an example in this case. Eating right will offer you the right nutrients and a protein-rich diet can guarantee you that the hair grows faster and stronger. This means that you should be eating at least 1 egg per day in order to help your hair grow fast and strong.