Its an essential nutrient, which means your body cant make vitamin B12, and it must come from outside sources
such patients with regular and chronic ethanol consumption be monitored for the desired therapeutic response to vitamin B12
These two delaying factors are why patients with low B12 levels are often prescribed B12 shots instead of oral supplements
Table of Contents How Vitamin B12 Is Absorbed in the Body Vitamin B12 (cobalamin) absorption is a complex, multi-stage process that begins in the mouth and concludes in the terminal ileum
Animal foods particularly high in vitamin B12 include bluefin tuna, Pacific oysters, salmon, Atlantic herring, mackerel, sardines, trout, and tuna