Vitamin B12 Deficiency: Uncovering the Link to Longitudinal Melanonychia Brown Line on Nails
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4 min read
According to the National Institutes of Health, vitamin B12 deficiency can lead to skin and nail abnormalities, including hyperpigmentation. Specifically, vitamin B12 deficiency is a known cause of **longitudinal melanonychia brown line on nails**, a condition characterized by brownish-black streaks on the nail plate. This article will delve into the nutritional link behind this condition, its underlying mechanisms, and the dietary steps to reverse it.