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Because injections skip this step, the absorption rate of B12 is significantly higher and more predictable than oral supplements
That dual action is what makes this combination so interesting
Results in one model may not translate to another
Both methods bypass the digestive system, but they differ in absorption speed, nutrient scope, and ideal use cases
B12 is also essential for maintaining normal brain function and contributing to the psychological health of an individual
Bibcode:2015Natur.517..513P
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