Fayet-Moore Flavia, McConnell Andrew, Kim Jean, Mathias Kevin C
Nutrition Research Australia, Sydney, NSW 2000, Australia.
Nestlé Australia Ltd., Rhodes, NSW 2138, Australia.
Nutrients. 2017 Jun 14;9(6):608. doi: 10.3390/nu9060608.
Adolescents in Australia have a poor dietary intake, leading to large numbers of them being at risk for inadequate intake of micronutrients, and excessive intake of less healthful dietary components. This study examined dietary intakes at multiple eating occasions to identify opportunities for more targeted recommendations and strategies to improve dietary intakes among adolescents. Data from the first 24-h recall of 14-18 years old in the 2011-2012 National Nutrition and Physical Activity Survey were analysed ( = 772). Participant-defined eating occasions were classified as breakfast, lunch, dinner or other eating occasions combined. The mean percent contribution to the total day intake of top shortfall nutrients (calcium, magnesium, vitamin A, iron), discretionary calories, saturated fat, free sugars and sodium, as well as nutrient density, the foods consumed and the percent of consumers at each eating occasion, were calculated. Breakfast had the lowest prevalence of consumers (81%), contributed the least to total daily energy (14.6%) and almost a quarter of daily calcium and iron. Other eating occasions combined contributed 47.5% of free sugars and were top contributors of daily calcium (34.6%) and magnesium (31.7%). Discretionary foods contributed 32.4% of the energy at lunch, and the sodium content at lunch was 415 mg/1000 kJ. Key opportunities identified for adolescents were to increase breakfast consumption, given the high nutrient densities of breakfasts consumed; improve overall lunch quality, particularly the sodium content; promote the intake of milk, fruit and a variety of vegetables at both lunch and dinner; maintain healthful choices at in-between meal eating occasions while focusing on decreasing the intake of discretionary foods.
澳大利亚青少年的饮食摄入情况不佳,导致大量青少年面临微量营养素摄入不足以及不健康饮食成分摄入过多的风险。本研究调查了多个用餐场合的饮食摄入情况,以确定更具针对性的建议和策略,从而改善青少年的饮食摄入。分析了2011 - 2012年全国营养与身体活动调查中14 - 18岁青少年首次24小时饮食回顾的数据(n = 772)。参与者定义的用餐场合分为早餐、午餐、晚餐或其他用餐场合的组合。计算了顶级短缺营养素(钙、镁、维生素A、铁)、自由支配热量、饱和脂肪、游离糖和钠对全天摄入量的平均贡献率,以及营养密度、所消费的食物和每个用餐场合的消费者比例。早餐的消费者比例最低(81%),对每日总能量的贡献最少(14.6%),但几乎占每日钙和铁摄入量的四分之一。其他用餐场合的组合贡献了47.5%的游离糖,是每日钙(34.6%)和镁(31.7%)的主要来源。自由支配食物在午餐时贡献了32.4%的能量,午餐时的钠含量为415毫克/1000千焦。针对青少年确定的关键机会是,鉴于所消费早餐的高营养密度,增加早餐的摄入量;提高午餐的整体质量,特别是钠含量;在午餐和晚餐时促进牛奶、水果和各种蔬菜的摄入;在两餐之间的用餐场合保持健康的选择,同时着重减少自由支配食物的摄入量。