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YesVitamin B12 is mainly found in animal-derived foods like meat, fish, and dairy
Those who lack B12 can find themselves chronically tired, weak, and with a waning metabolism that can cause weight gain
When activated, AMPK promotes fat utilization, glucose uptake, improved energy production, and better metabolic efficiency
Published online 2014 Feb 15
Vitamin B12 deficiency typically becomes clinically significant after several years of continuous metformin therapy, with higher risk in patients taking metformin for more than three years or on doses of 2g or more daily
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