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Some people are far more likely to run low on B12: Vegans and vegetarians, since B12 comes mainly from animal foods Older adults, because we absorb B12 less efficiently with age People with Crohn's, celiac, or other digestive conditions Anyone who has had gastric bypass or bowel surgery People taking metformin, antacids, or acid reducers long term Heavy alcohol users How B12 injections support weight loss Here is the honest version: B12 is not a fat-burning drug, and a shot will not melt away pounds on its own

Your provider may adjust this based on your IGF-1 response and tolerance

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Regular supplementation may preserve focus, memory, and clarity as part of a proactive brain health or longevity care plan

Youll need to see your GP to talk through your symptoms, and if they suspect a deficiency, theyll arrange a blood test