where to inject vit b12 injection Vitamin C and Techniques B12 Injections at Home -

It is easy to attribute a coincidental cold, poor sleep or a busy stressful period to the injection when the timing is simply overlapping

MTHFR and Vitamin B12 Absorption The MTHFR genetic mutation has a negative effect on B12 absorption, with studies showing an increased prevalence of low blood levels of vitamin B12 in those with the mutation

Joint discomfort associated with B12 supplementation is uncommon and not listed amongst the recognised adverse effects in the Summary of Product Characteristics (SmPC) for licensed B12 preparations or in the British National Formulary (BNF)

If you do notice any reaction at the injection site (such as warmth or a small lump), it can help to gently apply a cool compress