A B12 injection delivers a concentrated dose of vitamin B12 into the muscle for a fast energy and mood boost, while IV therapy infuses a broader blend of vitamins, minerals, and hydration directly into your bloodstream
If the elevation is unexplained, reducing B12 isnt the goal
Additional at-risk groups include: Vegans and strict vegetarians , who may have low dietary B12 intake People with autoimmune conditions , including pernicious anaemia or type 1 diabetes Individuals with gastrointestinal conditions such as Crohn's disease or coeliac disease, which impair nutrient absorption People who have undergone bariatric surgery , which can significantly reduce B12 absorption Long-term users of proton pump inhibitors (PPIs) or H2-receptor antagonists , which reduce gastric acid and impair B12 release from food Those with a family history of either pernicious anaemia or diabetes For these groups, simultaneous monitoring of B12 status and glycaemic markers is particularly important to avoid diagnostic errors
The Lancet
1 If anti-intrinsic factor results are negative but suspicion for pernicious anemia remains, an elevated serum gastrin level is consistent with the diagnosis
While megadoses of up to 2,000 mcg are considered safe in treating B12 deficiency, its always best to avoid excessive amounts of any vitamin, especially when its not needed
