In humans, the uptake and transport of vitamin B12 (cobalamin) is a multi-step process, starting in the stomach, where the acidic environment facilitates the release of cobalamin from dietary proteins
IM injections provide a direct and effective way to replenish B12 levels in the body, leading to improvements in energy levels, cognitive function, and overall well-being
It works by inhibiting NNMT, an enzyme that regulates cellular energy metabolism and is mostly found in fat tissue
The mechanism involves upregulation of matrix metalloproteinases (MMPs) and their inhibitors, which remodel collagen in a more organized way than unassisted healing
Data shows it may help support the integrity of the gut lining and aid ulcer-related healing in controlled environments
The studys limitations include the cross-sectional nature, which precludes establishing causality, self-reporting of anthropometric and demographic data, which might lead to bias, and unidentified confounding