China survey links nutrition campaign knowledge with stronger professional engagement

National Nutrition Week is a nationwide nutrition promotion campaign in China that relies on professionals to interpret messages and deliver local activities. In a cross-sectional online survey conducted from September 2025 to January 2026, researchers analysed 4,520 valid responses from professionals recruited through networks in all 31 provincial-level administrative regions. The survey assessed campaign knowledge, participation mode and breadth, toolkit use, and implementation appraisal; analyses adjusted for demographic and professional characteristics.

Higher campaign knowledge was associated with more favourable implementation appraisal (β=2.52, 95% CI 2.14–2.91). It was also associated with broader participation (OR 1.36, 95% CI 1.29–1.44), involvement through both online and offline modes (OR 1.70, 95% CI 1.50–1.92), and toolkit use (OR 1.67, 95% CI 1.57–1.78). The association between participation breadth and appraisal attenuated beyond approximately six communication channels or delivery settings. Exploratory mediation analyses estimated that engagement indicators partly accounted for the knowledge-appraisal association.

The results may inform campaign planning, including role definition, channel mix, and toolkit accessibility. However, the cross-sectional design cannot establish causality, and the outcomes were professionals’ reported appraisals rather than independently measured campaign effects. The Chinese Nutrition Society funded the study and supported questionnaire development and survey dissemination; the authors report that it had no role in analysis or publication decisions.