If he tourniquet's my arm again I'll ask him
In the randomized placebo-controlled HOME trial of 390 adults with type 2 diabetes (de Jager and colleagues, Long term treatment with metformin in patients with type 2 diabetes and risk of vitamin B-12 deficiency, BMJ, 2010), metformin lowered serum B12 by a mean of 19 percent over 4.3 years
On the other hand, injectable vitamins go directly into the bloodstream, providing nearly 100% absorption
Per week: 24 swabs (1 per vial + 12 per injection site) 12 weeks: ~50 swabs recommend 1 100-count box 24 weeks: ~100 swabs recommend 1 100-count box Protocol Overview Concise summary of the once-weekly regimen
Inform your doctor if you have kidney problems, or if you have ever had kidney stones
From a biochemical point of view, two essential enzymatic reactions require vitamin B 12 (cobalamin)