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Association of vitamin B12 deficiency in people with type 2 diabetes on metformin and diabetic peripheral neuropathy Nature article: Shows prolonged metformin use correlates with lower B12 and more severe diabetic neuropathy
WADA statement on substance AOD-9604
For patients whose deficiency is severe or accompanied by broader nutritional gaps, an IV infusion may offer advantages that a single-nutrient shot cannot match
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