What are the risks of B12 injections
It is typically administered as a daily subcutaneous injection, ideally on an empty stomach
Originally the source for intrinsic factor was virtually unprocessed normal gastric juice obtained from healthy volunteers
However, as reassuring as all of this is, there are a couple of things to remain mindful of: Copper toxicity Because GHK-Cu contains copper, it does pose a potential risk of copper toxicity,12 the symptoms of which include abdominal pain, vomiting, chest pain, chills, cough, fever, general weakness, anemia, burning sensations, tremors, and a metallic taste in the mouth.13 The risk is small, as the concentrations of copper in the peptide are typically well within safe parameters, but its good to be aware of it
Maintenance doses are usually given once a month
Strongest human evidence The METAOD006 (OPTIONS) Phase 2b trial randomized 502 adults with obesity (BMI 30-45 kg/m^2) to oral AOD-9604 (0.25, 0.5, or 1 mg/day) or placebo for 24 weeks alongside a supervised diet and exercise program