The body needs vitamin B12 to metabolize proteins and fats properly and to turn carbs into glucose, which is used as fuel
Promotes Healthy Skin, Hair, and Nails B12 supports cell turnover, which contributes to healthier skin, stronger hair, and nails, reducing dryness, brittleness, and skin inflammation
(GeneReviews/NCBI, updated descriptions)
Most people find these effects diminish over time as the body adapts, but the initial adjustment period can be genuinely unpleasant
Comorbidity in the elderly with diabetes: Identification of areas of potential treatment conflicts
Adipocyte & Metabolic Research: Frequently used in laboratory models studying lipid storage, energy expenditure, and metabolic adaptation