how much injectable b12 methylcobalamin should i take Buy Injections Online Methylcobalamin Injections | Vitamin B12
Description
In a healthy cat, the tissues retain B12 for an average of 13 days, but in a cat with gastrointestinal disease or other health problems, B12 may stay in the body for only about 5 days

doi: 10.1159/000369731 47 GaoYvan HarenMJMoretEERoodJJMSartiniDSalvucciAet al

8 This effect increased with duration of therapy, and patients had an unclear prophylactic supplementation response

Nevertheless, some observational evidence raises questions worth examining, which this page reviews
