Risk Factors To understand the risk factors associated with vitamin B12 deficiency, you need to be aware that high alcohol consumption can elevate your risk
Injections are good at treating more severe deficiencies, says Foxx
Some may experience minor side effects such as: Redness or swelling at the injection site Temporary soreness or bruising Less commonly, side effects could include: Mild headaches Nausea Itchy skin or rash Should you notice any prolonged side effects, we recommend speaking with your GP or calling NHS 111 for advice
Some people simply dont absorb B12 well through their gut, so the injection route works better for them
Cell-culture (3T3-L1 adipocytes) 5-Amino-1MQ at 30 M strongly reduced 1-MNA levels in mouse fat cells, confirming NNMT inhibition (Neelakantan et al., Biochemical Pharmacology, 2018)
You can learn more about B12 absorption challenges and treatment options on our site