Micronutrient‐Fortified Milk and Academic Performance among Chinese Middle School Students: A Cluster‐Randomized Controlled Trial
AbstractMany children suffer from nutritional deficiencies that may negatively affect their academic performance. This cluster‐randomized controlled trial aimed to test the effects of micronutrient‐fortified milk in Chinese students. Participants received either micronutrient‐fortified (n = 177) or unfortified (n = 183) milk for six months. Academic performance, motivation, and learning strategies were estimated by end‐of‐term tests and the Motivated Strategies for Learning Questionnaire. Blood samples were analyzed for micronutrients. In total, 296 students (82.2%) completed this study. Compared with the control group, students in the intervention group reported higher scores in several academic subjects (p < 0.05), including languages, mathematics, ethics, and physical performance at the end of follow‐up. Students in the intervention group showed greater self‐efficacy and use of cognitive strategies in learning, and reported less test anxiety (p < 0.001). Moreover, vitamin B2 deficiency (odds ratio (OR) = 0.18, 95% confidence interval (CI): 0.11~0.30) and iron deficiency (OR = 0.34, 95% CI: 0.14~0.81) were less likely in the students of the intervention group, whereas vitamin D, vitamin B12, and selenium deficiencies were not significantly different. “Cognitive strategy” had a partial mediating effect on the test scores of English (95% CI: 1.26~3.79) and Chinese (95% CI: 0.53~2.21). Our findings suggest that micronutrient‐fortified milk may improve students’ academic performance, motivation, and learning strategies. View Full-Text
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Wang, X.; Hui, Z.; Dai, X.; Terry, P.D.; Zhang, Y.; Ma, M.; Wang, M.; Deng, F.; Gu, W.; Lei, S.; Li, L.; Ma, M.; Zhang, B. Micronutrient‐Fortified Milk and Academic Performance among Chinese Middle School Students: A Cluster‐Randomized Controlled Trial. Nutrients 2017, 9, 226.
Wang X, Hui Z, Dai X, Terry PD, Zhang Y, Ma M, Wang M, Deng F, Gu W, Lei S, Li L, Ma M, Zhang B. Micronutrient‐Fortified Milk and Academic Performance among Chinese Middle School Students: A Cluster‐Randomized Controlled Trial. Nutrients. 2017; 9(3):226.Chicago/Turabian Style
Wang, Xiaoqin; Hui, Zhaozhao; Dai, Xiaoling; Terry, Paul D.; Zhang, Yue; Ma, Mei; Wang, Mingxu; Deng, Fu; Gu, Wei; Lei, Shuangyan; Li, Ling; Ma, Mingyue; Zhang, Bin. 2017. "Micronutrient‐Fortified Milk and Academic Performance among Chinese Middle School Students: A Cluster‐Randomized Controlled Trial." Nutrients 9, no. 3: 226.
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