Then, we'll review your medical history, looking at things like your diet (especially if you're vegan or vegetarian), your age, any stomach or gut conditions, past surgeries, and even the medicines you take, like metformin or proton pump inhibitors, which can sometimes affect B12 levels
But what does vitamin B-12 do
When it comes to vitamin B12, your body needs this essential vitamin to build red blood cells, get energy out of the food you eat, support your nervous system, and more
It is not approved by the FDA for the treatment, prevention, or diagnosis of any disease