b12 injections breast cancer Vitamin (Cyanocobalamin Injections) — Mountainside Medical Vitamin B12 shots: Uses, benefits,
Description
This can be especially important for individuals with MTHFR gene mutation, as it may help support methylation processes and overall health
Other forms such as methylcobalamin and adenosylcobalamin are available as food supplements but are not licensed as medicines by the MHRA

The frequency of the 100 mcg B12 injection then becomes once a month

Sinha, 2024)
