Heredity and age are normal reasons for FoliGrow XT graying of hair. However, in cases of premature graying, it is important to find the root cause of gray hair. Stress, anxiety, worry, malnutrition, tension, shock and other similar conditions tend to reduce the production of melanin, which then results in graying hair. If you suffer from graying of hair, maintaining a proper diet helps in FoliGrow XT controlling premature graying or hair. Fruits and vegetables provide the required vitamins and minerals for healthy, shiny and lustrous hair.