[1] Because intrinsic-factor-dependent uptake in the distal ileum can be absent in conditions such as autoimmune gastritis, pancreatic insufficiency, or bariatric surgery, the intramuscular or subcutaneous route bypasses gastrointestinal barriers and reliably restores serum concentrations
If blood tests show clearly low levels (thresholds vary by lab, but often below roughly 200 pg/mL) or there are signs of anemia, a provider may recommend weekly injections for the first several weeks as a correction or "rescue" phase
Benefits include increased energy levels, improved mood, enhanced mental clarity, better absorption compared to oral supplements, and support for overall health
Remember, it is very important to consult with a healthcare provider before starting any new weight loss regimen, including B12 shots
But shots given under the skin might need to be done more often because they absorb more slowly. Its key for doctors to adjust treatment plans based on each patients needs
06 Dec Are You Getting the Vitamin B12 Your Body Needs
