PLoS ONE 6 , e21889 (2011)
Over the following weeks most people notice subtle metabolic shifts and reduced bloating first (weeks 12), then more noticeable body-composition change around the midsection (weeks 24), then visible fat loss with muscle preserved (weeks 48), with the best results from week 8 onward, diet and exercise still do the heavy lifting
Cystathionine beta-synthase mutations in homocystinuria
Vitamin B12 injection for weight loss, energy, pernicious anemia, schilling test and overall health
Taking cyanocobalamin if you have a methylation issue or MTHFR defect (3) in your genes can also cause issues as your body attempts to methylate the B12 before it can utilize it completely
VITAMIN B12 INJECTIONS Support Your Energy