Univariate weighted logistic regression model revealed that compared to the Q1 group of serum albumin concentration, the risks of developing MetS decreased by 27% (OR 0.73, 95% CI 0.64–0.82, P < 0.001) in the Q2 group, 38% (OR 0.62, 95% CI 0.56–0.69, P < 0.001) in the Q3 group, and 62% (OR 0.38, 95% CI 0.34–0.43, P < 0.001) in the Q4 group. Here, ALB is linked to metabolic syndrome.