GPT and metabolic syndrome: Within normal ranges, the highest quartile of GGT (OR = 2.81, 95% CI: 2.22-3.56, <i>p</i> < 0.001), ALT (OR = 2.39, 95% CI: 1.89-3.03, <i>p</i> < 0.001), and ALP (OR = 1.63, 95% CI: 1.30-2.04, <i>p</i> < 0.001) showed significant associations, while AST did not.<h4>Conclusion</h4>Serum liver enzyme levels, including those within normal range, were strongly associated with MetS.