hello there. premature greying of hair can be due to dietary deficiencies, infections of the scalp, inflammation of the scalp and certain diseases like vitiligo etc. in most of us today the commonest cause is dietary deficiencies. have lots of greens , vegetables and fruits. almonds, Walnuts, yogurt, berries all have high content of biotin in them which is very important for hair. having these foods will address your hairfall also. regards