For a subcutaneous B12 injection, a finer, shorter needle is used: around 25 to 27 gauge and half to five-eighths of an inch
Always consult a licensed healthcare provider before using peptides or related supplements
Erysipelatoclostridium is a member of the Erysipelotrichaceae family, which has been linked to obesity and related metabolic issues 59
It would remain the responsibility of Primary Care to diagnose and treat B12 deficient patients but they would have to choose to

not present in plants Daily requirement: ~ 23 g/day Body stores: 25 mg , mostly in the liver (sufficient for 25 years) Absorption Pathway : In the mouth/stomach: B12 is protein-bound in food Stomach acid and pepsin release B12 from food proteins B12 binds to haptocorrin (also called R-binder or transcobalamin I) secreted by salivary glands and gastric mucosa In the small intestine : In the duodenum , pancreatic proteases degrade haptocorrin Free B12 then binds to intrinsic factor (IF) , a glycoprotein secreted by gastric parietal cells The B12IF complex travels to the terminal ileum , where it binds to cubilin receptors and is absorbed via receptor-mediated endocytosis 1 In the enterocyte and bloodstream: Inside enterocytes, B12 dissociates from IF It binds to transcobalamin II (TCII) for systemic transport Only B12TCII complex (called holotranscobalamin ) is biologically active and taken up by tissues Storage and transport: B12 is stored in the liver (main site), but also in muscle Transcobalamin II transports active B12 to tissues

I was given the loading dose then prescribed 3 monthly injections which were nowhere near enogh to keep my symptoms at bay