Objective To explore how personalized nutritional guidance influences the food choices and dietary patterns of dinner in obese adults undergoing weight management. Methods The study was conducted within a weight management camp in Shanghai. Fifteen male obese adults (BMI≥28), recruited between February and August 2025, were included. A self-pre-post control design was adopted. Before the intervention, a smart dietary assessment system (SAT) was used to conduct a dinner matching test and collect baseline dietary data. A 4-week personalized nutritional intervention was then implemented, comprising standardized meal guidance, systematic nutritional education, and a structured exercise protocol. After the intervention, the SAT test was repeated. Anthropometric measurements (including weight, body fat ratio, BMI, and waist-to-hip ratio) and data on the dietary structure of self-prepared dinners via the SAT system were collected before and after the intervention. Paired sample t-test was used for normally distributed data analysis Wilcoxon signed-rank test was applied for non-normally distributed data analysis. Results Following the weight management intervention, significant reductions were observed in weight, body fat ratio, BMI, and waist-to-hip ratio (P<0.05). Regarding dietary structure, the intakes of livestock, poultry, fish, and eggs were significantly decreased (P<0.05). Energy and protein intakes also showed a significant reduction (P<0.05). The proportions were of the three macronutrients in energy contribution shifted closer to the recommendations by the Chinese Nutrition Society. However, dietary fiber intake remained inadequate. Excessive intake of certain minerals (such as phosphorus and iron) was alleviated, while inadequate dietary calcium intake persisted. The intake of B vitamins showed a decline. Conclusion Personalized dietary guidance can help of obese individuals to adequately choose foods for evening meals, and facilitate a shift towards a more rational dietary pattern. [ACTA NUTRIMENTA SINICA,2025,47（6）：553–559]
Key words
dietary guidance /
obese individuals /
dietary patterns /
weight management
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