b12 injections and liver disease Frontiers Can Vitamin B12 (Vit B12)

Acquired causes of B12 deficiency can be 1) dietary, especially in vegetarian and vegan populations, 2) autoimmune, as seen in pernicious anaemia, where there is destruction of IF-producing parietal cells mediated by autoantibodies, 3) iatrogenic secondary to disruption of the acid-base status of the stomach (e.g., with proton pump inhibitor use or metformin), and 4) caused by malfunction of the terminal ileum (e.g., inflammatory bowel diseases like Crohns disease, gastric bypass or surgical resection)

US Department of Health and Human Services, National Institutes of Health, Office of Dietary Supplements

( McGuff Medical

26 Biochemical abnormalities commonly seen in patients with ASD include impaired methylation, sulphation capacities and low glutathione (GSH) redox capacity, all of which can potentially respond to B12 supplementation