GPT and metabolic syndrome: Compared to the patients without MetS, those with MetS were older (67.0 ± 12.8 vs. 61.0 ± 16.4 years, p < 0.001), had lower education levels (5.5 ± 5.1 vs. 7.7 ± 5.6 years, p < 0.001), had less fruit intake at ≥2 portions per day (53.2% vs. 58.9%, p = 0.004), were more likely to do betel nut chewing (11.1% vs. 7.4%, p = 0.002), had significantly positive data of individual MetS components, and had higher AST (27.4 ± 15.8 vs. 24.2 ± 11.0, p < 0.001) and ALT levels (27.1 ± 21.0 vs. 21.0 ± 16.2 U/L, p < 0.001).