What they probably didnt mention is that functional B12 deficiency can begin at levels well above the standard cutoff and that by the time serum B12 drops below the labs flagged range, neurological damage may already be underway
Common weight loss injection side effects Weight loss injections are generally well tolerated , but like any medicine, they can cause side effects, especially when you first start treatment or increase your dose
In addition, certain medications can reduce the absorption (and therefore the benefits) associated with B12
Its unique profile makes it an attractive compound for exploring the therapy of metabolic disease and muscle aging, as well as evaluating the intricate links between metabolism, epigenetics, and tissue function 1-4
A 2025 meta-analysis of 16 studies involving 6,098 participants found no statistically significant difference between intramuscular, oral, and sublingual B12 supplementation routes (p=0.270)