Vitamin B12 deficiency has occurred in breast-fed infants of vegetarian mothers whose diets contain no animal products (e.g., eggs, dairy), even though the mothers had no symptoms of deficiency at the time
The two main approaches are subcutaneous injection (under the skin, typically in the abdominal fat pad) and intramuscular injection (into a muscle belly)
The resulting solution must be drawn into a syringe at a known concentration so each dose can be measured accurately
Available online: [DOI] [PMC free article] [PubMed] [Google Scholar] 25.Talaei A., Siavash M., Majidi H., Chehrei A
When administered by licensed medical professionals, B12 injections are widely used in wellness and preventive care and are considered safe for appropriate candidates
But some side effects have been reported, including: Patients with a history of melanoma may be advised to avoid peptide therapy