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At this point, the protein may not function the same, rendering the supplement useless

In vitro studies have shown that CD8 T cells have a predominant role in killing infected cells, whereas CD4 T cells collaborate with CD8 T cells and can also directly attack infected cells (122, 298, 299)

Sun SP, Lu YF, Li H, Weng CY, Chen JJ, Lou YJ, et al

However, research shows that people with low B12 tend to have higher BMI, reduced physical activity, disrupted fat cell gene expression, and elevated homocysteine, all of which can contribute to gradual weight gain over time
