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are b12 injections better than sublingual what can i take instead of B12 vs Injection – WhyNotNatural Are sublinguals better than Injections?
Description
Supplemental folic acid therapy in pernicious anemia: the effect on erythropoiesis and serum vitamin B12 concentrations in selected cases

This is great for people who had gastric bypass surgery
It sounds like some people do not methylate folic acid very well

B12 injections are extremely safe, even at higher doses, and adverse reactions are rare

Ma G, Wang Y, Li Y, Cui L, Zhao Y, Zhao B, Li K