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10.1529/biophysj.104.043273 172 RorsmanP.BokvistK.AmmlC.ArkhammarP.BerggrenP

5 In some cases, sublingual B12 supplementation may be more effective than oral administration

If you are feeling bolder, try intramuscular injections for quicker absorption of vitamin B-12

My husband type 1 diabetic always done my injection, silly me should have paid more attention

Wu Y, Zhang L, Li S, et al
