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The Journal of the Association of Physicians of India
Vitamin B12 functions as a cofactor in cellular metabolism but possesses no thermogenic properties and does not directly influence adipose tissue metabolism or fat burning
Risk factors that should prompt consideration of B12 deficiency include advancing age (reduced stomach acid production), strict vegan or vegetarian diets, pernicious anaemia, gastrointestinal surgery (particularly gastric bypass or ileal resection), long-term use of certain medications (metformin, proton pump inhibitors, H2-receptor antagonists), nitrous oxide exposure (including recreational use), and conditions affecting the gut such as Crohn's disease or coeliac disease
Smith B (ed.)
To fight off diseases, you need a healthy immune system
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