Abstract
The aim of the study was to assess the nutrition knowledge, nutrient intakes, and association between nutrition knowledge and dietary intakes of 98 adolescents attending five schools in rural Cofimvaba, South Africa. Measures included a socioeconomic questionnaire, two 24-hour-recall questionnaires, and food-frequency and nutrition knowledge questionnaires. The overall score for the multiple-choice section on general nutrition and the South African Food-Based Dietary Guidelines was 72.9%; 75.4% for correct identification of food groups; and 41.3% for correct identification of food portions/serving sizes. Median nutrient intakes, measured by 24-hour recall, failed to meet average requirements, with the exception of protein, carbohydrates, chromium, riboflavin, pantothenate, and vitamin K among girls. A similar trend was observed for boys. Lower total carbohydrate and fat and higher protein intakes were associated with a higher quartile score for nutrition knowledge. The study provided a valuable understanding of the association between nutrition knowledge and dietary intakes of adolescents.
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