The nutrients that are sometimes implicated in hair loss are the essential fatty acids, so I give flaxseed oil or the amino acid L-cysteine. What's so insidious about hair loss is that it can be latent. You go on a crash diet, then resume your normal eating habits, and later lose hair, so it's hard to establish antecedents. Many people don't recognize the relationship of hair condition or hair loss to illness. Sometimes there is a latency period of months after an illness before the hair loss occurs.
Hair is, in fact, one of the most vulnerable parts of the body.
Any nutritional deficiency or illness is liable to show up in the skin and nails and also the hair. As they age, most women will also experience some hair loss. It happens to some women in their forties as a prelude to menopause Whether you're a man or a woman, if you find that you're losing more hair than you suspect is normal, you should certainly see your doctor to investigate the cause. For instance, I often tell women who have had hair loss to try discontinuing birth control pills or hormone replacement therapy. Loss of scalp hair is listed as a side effect of estrogen in the Physicians' Desk Reference, though it is infrequent.