vitamin b12 injection merck B-12 3000 mcg 250mL 12 per dose Contains a sterile vitamin B Neurobion Injection Uses, Dosage, Side

Food and Drug Administration) Dietary deficiency of vitamin B 12 occurring in strict vegetarians and in their breastfed infants (isolated vitamin B 12 deficiency is very rare) Malabsorption of vitamin B 12 resulting from damage to the stomach, where intrinsic factor is secreted, or damage to the ileum, where intrinsic factor facilitates vitamin B 12 absorption

This is a common cause of B12 deficiency in the UK and is usually diagnosed by your general practitioner

Salden et al, 2015

Tamping down autoimmune disease with diet: Autoimmune gastritis can occur along with other autoimmune diseases, and autoimmune diets may help to decrease symptoms and flares

It seems well-tolerated in available studies with low toxicity