b12 defiency glutathione synthesis Glossitis and hyperpigmentation of hands due to Vitamin deficiency. ⬇️ B12 leads to ⬆️ melanin more frequently in people with darker skin. Skin hyperpigmentation was reversed with B12 replacement Genetic disorders of vitamin B12
Genetic disorders of vitamin B12 metabolism: eight complementation groups eight genes PMC Ways to Boost Your Glutathione Levels for Optimal Health Deanna Minich Vitamin B12 and Methylation Vitamin B12 Biochemistry and (Patho) Physiology Encyclopedia MDPI
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