Vitamin B12 injections for MTHFR: Injection or sublingual B12? Methyl Life Supplements Vitamin B12 ampoules for injection Stock Photo Alamy cyanocobalamin Do you take metformin for treatment of your diabetes? If so, did you know that metformin use can affect your vitamin B12 levels? Metformin is a very common medication used to treat
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do b12 injections cause diarrhea VITA-JEC Vitamin B12 for Dogs, Cats & Horses, 1000-mcg/mL, 100-mL - Easy Refills