Abstract

Background and Objectives: Dietary intervention is an important strategy for the treatment and management of metabolic syndrome (MetS). This study is aimed to investigate the effectiveness of a canteen-based dietary intervention on MetS in occupational men. Methods and Study Design: A randomized controlled study was conducted in May 2022. A total of 321 men with MetS aged 25 to 59 years were recruited from Shengli Oilfield. Participants in one canteen were randomly allocated to dietary intervention group (IG) and those in the other canteen as control group (CG). CG received health education for 6 months. IG received a 6-month healthy lunch and personalized dietary advice added health education. Blood pressure, fasting blood glucose (FBG), lipid profiles, waist circumference (WC) and body mass index (BMI) were measured before and after intervention. Results: Compared with CG, FBG (β: -0.72, p = 0.010), TC (β: -1.49, p <0.001), LDL-C (β: -0.65, p <0.001), WC (β: -7.73, p <0.001), BMI (β: -2.01, p <0.001) decreased and HDL-C (β: 0.13, p <0.001) increased significantly in IG. The IG had a 30.4% reduction in MetS, whilst there was a 1.3% reduction in CG (p <0.01). Moreover, a significant reduction in central obesity (-30.4%, p <0.001), high FBG (-8.8%, p <0.001), and low HDL-C (-4.1%, p = 0.008) was observed in IG. Conversely, the CG showed an increase in low HDL-C (10.7%, p <0.001). Conclusions: Canteen-based intervention with a healthy lunch and personalized dietary advice can reduce the risk of MetS in occupational men. This study provides new empirical data for dietary intervention in ameliorating MetS.

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