can you have too much vitamin b12 injection Symptoms if Take Too Much Vitamin B12: Risks,

Do effects persist or fade with adaptation

While vitamin B12 is generally considered safe, even at high doses, the concept of "too much vitamin B12" is worth exploring

They are particularly beneficial for vegetarians and vegans (since B12 is found primarily in animal products), older adults with reduced absorption capacity, individuals with digestive conditions such as Crohn's disease or celiac disease, and anyone who has had gastric bypass surgery

In cases where hypersensitivity is confirmed, desensitization protocols have been developed to allow patients to continue receiving necessary vitamin B12 supplementation safely