Some individuals may feel a brief sting or discomfort at the injection site, while others may not feel anything at all
Kannt A, Rajagopal S, Kadnur SV, Suresh J, Bhamidipati RK, Swaminathan S, Hallur MS, Kristam R, Pieper MP
Its also best to begin this injection treatment with a professional at first, so that you can be sure that it is administered correctly
The subcutaneous layer is thicker in people who have more body fat and therefore patients with a higher BMI may need a longer needle to adequately get into the skeletal muscle
Some health issues can change how much B12 is needed

Chan School of Public Health: "Vitamin B12." Inflammatory Bowel Diseases: "Prevalence of and risk factors for vitamin B(12) deficiency in patients with Crohn's disease," "Vitamin B12 deficiency in inflammatory bowel disease: prevalence, risk factors, evaluation, and management." MedlinePlus: "Cyanocobalamin Injection." National Health Services: "Hydroxocobalamin," "Treatment -Vitamin B12 or folate deficiency anaemia Contents," "Vitamin B12." Nutrition Reviews: "How prevalent is vitamin B(12) deficiency among vegetarians?" Surgery for Obesity and Related Diseases: "Vitamin B12 deficiency in patients undergoing bariatric surgery: preventive strategies and key recommendations." The American Journal of Clinical Nutrition: "How common is vitamin B-12 deficiency?" The American Journal of Gastroenterology: "Vitamin B12 deficiency in untreated celiac disease." Top B12 Injections Who Get Them, How Quickly They Work Related Articles 22 Healthy Foods High in B VitaminsAny deficiency of B vitamins can lead to various health conditions
