The unbearable fatigue
Reviewed by Brandon Johnson Certified Personal Trainer, Nutrition Coach & Peptide Research Consultant Brandon Johnson is a certified personal trainer, nutrition coach, and peptide research consultant with a background in kinesiology and over 15 years of experience in fitness and wellness
published findings are primarily pre-clinical and exploratory
As the However, while risks of severe toxicity are low, some side effects are still possible, such as: temporary symptoms, such as itching, swelling, or diarrhea allergic reaction damage from the injection hypokalemia, or low potassium levels infection negative interactions with certain medications, such as: metformin (Fortamet, Glucophage, Riomet) medications to reduce gastric acid, such as proton pump inhibitors or H2 receptor antagonists Always talk with a doctor before using vitamin B12 supplements
Common side effects that you may experience include tenderness at the injection site, upset stomach and lethargy