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When B12 enters the digestive system, it is initially bound to proteins in food
I was always bottom heavy
Importantly, animals were singly housed to eliminate the exchange and cross-contamination of intestinal microbiomes, a factor that potentially biases studies with group-housed animals by minimizing microbiome variations for co-housed animals within a cohort
Vitamin B12 is a nutrient our bodies cant make, so we get it from food or supplements
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