“Hypovitaminosis B12 and hypothyroidism showed significant association with the disorder, whereas anaemia, serum ferritin and fasting blood glucose did not,” noted the researchers.
Vitamin B12, found in meat, fortified cereals and dairy products is key for metabolism, DNA production and overall energy levels.
Researchers have often found vitamin B12 deficiency to be concurrent with folic acid and biotin deficiencies in people whose hair has started to turn grey early.
Fortunately, hair pigmentation loss caused by nutritional deficiencies could be reversible.
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