Going gray is a natural part of growing older, and it can begin as early as your thirties. When and if you will go gray is largely determined by genetics, and no nutritional or vitamin supplements will reverse this. However, certain nutrient deficiencies can cause you to go gray prematurely, and these can typically be corrected. See your doctor if you are concerned about your gray hair.
Natural Graying
Natural graying of your hair occurs when your body stops making melanin, which is the pigment that gives your hair its color. The primary cause of this is simply aging and heredity, though your health and the environment can contribute to graying hair as well. On average, men begin to go gray around 30 and women around 35, and those who are Caucasian may notice these hair changes earlier than those of other races.
Contributions to Graying
Certain factors aside from age and genetics can cause your hair to gray as well, even prematurely. People who smoke are more likely to develop gray hair at a younger age. Furthermore, smoking can inhibit your body's ability to absorb certain nutrients necessary for healthy hair, which may in turn lead to hair loss and graying. Additionally, a condition like pernicious anemia, which is characterized by a deficiency in vitamin B12, may also cause your body to produce less melanin, which can then result in gray hair.
Folic Acid
Folic acid is essential for many bodily functions that contribute to hair health, including the growth and division of hair follicle cells. Furthermore, a deficiency in this vitamin can cause your hair to go gray, among other side effects. The RDA for folic acid is 400 mcg, though you may need more if you are a female of childbearing age. Common food sources include beans, legumes, citrus fruits, wheat bran, dark leafy green vegetables, poultry and pork. Once you are getting an adequate amount of folic acid, the symptoms of the deficiency, including your gray hair, should diminish. Talk to your doctor about adding a folic acid supplement or foods rich in the vitamin before doing so.
Additional Considerations
If you believe your gray hair is the result of a nutrient deficiency or illness, seek medical attention. Once you are on the proper medication or supplements, your gray hair will likely be reversed. However, if you are going gray because of age, be aware of products that claim they are able to reverse this. They are likely ineffective and may cause harm to your health.
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