Fineman M, Weyer C, Maggs DG, Strobel S, Kolterman OG
Commercial/vendor material
Our team strongly advises against this
A large portion of our immune system resides within our digestive tract
Self-administered B12 shots are generally recommended for individuals: whose bloodwork has documented low B12 levels Patients with pernicious anemia or a lack of intrinsic factor Individuals with Crohn's disease, celiac disease, or post-bariatric surgery malabsorption Vegans and strict vegetarians are unable to correct the deficiency through diet Older adults whose stomach acid production has declined with age Anyone on long-term metformin or proton pump inhibitors Across most of the U.S., injectable B12 is not sold over the counter a clinician has to write the script before a pharmacy can dispense it
It also modulates retinal health, with studies showing normalized electroretinogram responses in aged rats (Bulletin of Experimental Biology and Medicine, 2002)