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Description
While some research has explored potential connections between nutritional status and hair health, the specific relationship between B12 deficiency and hair pigmentation remains an area where evidence is limited

References [1] MINHUA HONG

Methotrexate self-injectable solution is used to treat psoriasis
Its safety, efficacy, appropriate dosing, and long-term effects in humans have not been established

This makes it harder to get vitamin B12 from food, raising the risk of deficiency