Within the first day or two, the vitamin is absorbed into your bloodstream, and your cells finally get the supply they were missing
11:198202 Lee WJ , Hsu HY , Wang PY : Reversible myelopathy on magnetic resonance imaging due to cobalamin deficiency
Early studies in obese individuals showed some reductions in body fat mass, but findings are not consistent across trials: In one clinical trial, AOD9604 did not demonstrate statistically significant weight loss compared to placebo, suggesting its fat-burning effects may be modest without lifestyle intervention (summary of trials)
More commonly though, deficiency is due to poor absorption of this large vitamin
What Are the Real Risks and Side Effects of B12 Injections
Common Cycle Lengths Most users follow 46 weeks on , followed by 24 weeks off