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1 2 3 "Vitamin B12, folate, and the methionine remethylation cycle-biochemistry, pathways, and regulation" (PDF)
Jan 22, 2026 Your hair follicles are dying
Glutathione plays an important role in various metabolic and biochemical reactions, such as DNA synthesis and repair, protein synthesis, enzyme activation, and amino acid transport
These include: Lifestyle interventions (dietary advice, physical activity programmes) Licensed pharmacotherapy such as orlistat, or GLP-1 receptor agonists including semaglutide 2.4 mg (Wegovy, NICE TA875) or tirzepatide (Zepbound) where clinically indicated and available Referral to tier 3 or tier 4 weight management services , including bariatric surgery assessment where appropriate Information on NHS weight management services and eligibility for licensed treatments is available via the NHS website and NICE guidance
Laboratory reference ranges for serum B12 vary between facilities
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