Evidence check: FUT2 in the context of blood sugar

The provided context contains no direct evidence linking FUT2 to blood sugar. FUT2 (fucosyltransferase 2) determines secretor status and is consistently associated with vitamin B12 levels and gut microbiome composition. An indirect effect on blood glucose via microbiome or B12 is plausible but not supported by the given sources. The overall evidence for FUT2 in glucose metabolism is weak and inconsistent. MyBody-X tests are lifestyle-oriented, not medical diagnostics. Evidence-based assessment is not possible here. Be cautious of overblown claims in commercial DNA tests.