can a b12 injection cause diarrhea Metformin: (Side Effects) First-line for Type 2 diabetes (and used in insulin resistance/PCOS) → most side effects are GI and improve with “start low, go slow” 🔹 Common Side Effects (Mostly GI) Vitamin B12 overdose: Side effects

According to a 2013 study published in Neurologic Clinics, common B12 deficiency treatment regimens include 1,000 micrograms of B12 injections daily for 5 to 7 days followed by 1,000 micrograms on a monthly basis, or B12 injections once weekly for four weeks followed by monthly injections

You might not necessarily feel that right away in the office or with the very first one or even the second one but it is very common for patients to tell us this

But the expectation going in should be calibrated to what the evidence actually supports: modest, localized fat loss that likely requires a supportive diet and exercise foundation to be meaningful

Serum B12 levels may therefore serve as a marker of hepatic injury, with higher levels sometimes correlating with disease severity

Monthly B12 injections must be administered under proper medical supervision [20]