Southeast Dairy Foods Research Center, Department of Food, Bioprocessing, and Nutrition Sciences, North Carolina State University, Raleigh, NC 27606.
Southeast Dairy Foods Research Center, Department of Food, Bioprocessing, and Nutrition Sciences, North Carolina State University, Raleigh, NC 27606.
J Dairy Sci. 2023 Oct;106(10):6771-6788. doi: 10.3168/jds.2023-23326. Epub 2023 May 18.
School lunch programs are mandated by the US Code of Federal Regulations to serve pasteurized milk that is skim or 1% fat and fortified with vitamins A and D. In recent years, proposals have been made to alter nutritional requirements for school lunches and school lunch milk, including changes to the milk fat and flavor options available. The objective of this study was to evaluate parental understanding and perception of school lunch milk to better understand how changes to school lunch milk are perceived by parents. Four focus groups (n = 34) were conducted with parents of school-aged children (5-13 yr) who purchased milk as part of a lunch at school. Participants were asked about school lunch milk, including nutritional content, packaging, and flavoring. Focus groups included a build-your-own milk activity and discussion of children's milk products currently available on the market. Two subsequent online surveys were conducted with parents of school-aged children (survey 1, n = 216; survey 2, n = 133). Maximum difference scaling was used to evaluate what beverages parents would prefer their child to drink at school (survey 1) and which attributes of chocolate milk for children were most important to parents (survey 2). An adaptive choice-based conjoint activity (survey 1) included flavor, milk fat, heat treatment, label claims, and packaging type. Both surveys included questions to evaluate knowledge of milk nutrition and attitudes regarding milk and flavored milk. Agree/disagree questions were used in both surveys to assess parental opinions of school lunch milk. Survey 2 also included semantic differential (sliding scale) questions to assess parental opinions of chocolate milk and their acceptance of sugar alternatives in chocolate milk served in schools. Parents were familiar with the flavor options and packaging of school lunch milk, but expressed limited familiarity with school lunch milk fat content. Parents perceived milk to be healthy and a good source of vitamin D and calcium. From survey results, parents placed the highest importance on school lunch milk packaging, followed by milk fat percentage and flavoring over label claims and heat treatment. The ideal school lunch milk for parents was unflavored (white milk) or chocolate, 2% fat, and packaged in a cardboard gabletop carton. For school lunch chocolate milk, 3 distinct clusters of parents with differing opinions for children's chocolate milk were identified. Parents are largely unfamiliar with the specific attributes and nutritional profile of milk served in schools but believe that schools should offer milk to their children as part of breakfast and lunch. Parents in both surveys also displayed a preference for 2% fat milk over low-fat options, which provides actionable insight for both governmental bodies determining educational and nutritional policies for school meals and fluid milk producers seeking to optimize their products intended for schools.
学校午餐计划由美国联邦法规要求提供巴氏杀菌奶,其脂肪含量为脱脂或 1%,并添加维生素 A 和 D 进行强化。近年来,有人提议修改学校午餐和学校午餐牛奶的营养要求,包括改变可用的牛奶脂肪和风味选择。本研究的目的是评估家长对学校午餐牛奶的理解和看法,以更好地了解家长对学校午餐牛奶的看法。对 5-13 岁在校购买午餐牛奶的学生家长进行了 4 次焦点小组讨论(n = 34)。参与者被问到学校午餐牛奶,包括营养成分、包装和调味。焦点小组包括一个自行调制牛奶的活动,并讨论了目前市场上可供儿童饮用的牛奶产品。随后对有学龄儿童的家长进行了两次在线调查(调查 1,n = 216;调查 2,n = 133)。最大差异标度用于评估家长希望孩子在学校喝什么饮料(调查 1),以及家长认为儿童巧克力牛奶最重要的属性是什么(调查 2)。一个适应性基于选择的联合活动(调查 1)包括口味、牛奶脂肪、热处理、标签声明和包装类型。两项调查都包括评估牛奶营养知识和对牛奶及调味牛奶态度的问题。在两项调查中都使用了同意/不同意问题来评估家长对学校午餐牛奶的看法。调查 2 还包括语义差异(滑动刻度)问题,以评估家长对巧克力牛奶的看法以及他们对学校供应的巧克力牛奶中糖替代品的接受程度。家长熟悉学校午餐牛奶的口味选择和包装,但对学校午餐牛奶脂肪含量的了解有限。家长认为牛奶是健康的,是维生素 D 和钙的良好来源。根据调查结果,家长最看重学校午餐牛奶的包装,其次是牛奶脂肪含量和调味,然后是标签声明和热处理。家长心目中理想的学校午餐牛奶是无味(白色牛奶)或巧克力味、2%脂肪,包装在纸盒式屋顶纸盒中。对于学校午餐巧克力牛奶,确定了 3 组对儿童巧克力牛奶有不同看法的父母群体。家长们对学校供应的牛奶的具体属性和营养状况知之甚少,但他们认为学校应该为孩子提供牛奶作为早餐和午餐的一部分。两次调查中的家长都更喜欢 2%脂肪牛奶而不是低脂肪牛奶,这为政府确定学校膳食的教育和营养政策以及希望优化面向学校产品的牛奶生产商提供了可行的见解。