Principal, Maureen Storey, LLC, Gainesville, Virginia, USA.
Independent research consultant, Monroe, Washington, USA.
Nutrition. 2018 Feb;46:115-121. doi: 10.1016/j.nut.2017.08.013. Epub 2017 Sep 19.
Consumption of fruits and vegetables (FV) remains lower than recommended by the 2015 to 2020 Dietary Guidelines for Americans. The aim of this study was to assess average FV and frozen FV consumption and the effect on nutrient intakes across sex and 10 age categories.
Nutrient intake from foods and consumption of FV were estimated using combined data from the National Health and Nutrition Examination Survey 2011 to 2014 and the Food Pattern Equivalents Database 2011 to 2012. Means were compared across sex and between frozen FV consumers and nonconsumers.
On average, consumers of frozen FV consumed significantly more total FV than did nonconsumers, but neither group met the recommended servings of FV per day. Intake of nutrients of concern-dietary fiber, potassium, calcium, and vitamin D-were significantly higher among consumers of frozen FV, whereas sodium intake was lower. Mean energy intake among children ages 1 to 18 y was significantly lower among those who ate frozen FV, but energy intake was not affected by consumption of frozen FV for adults. Mean body mass index was significantly lower among adult consumers of frozen FV.
Results of this study suggested that when frozen FV are not consumed, other forms, such as fresh, canned, or dried, do not fill the FV gap. Government food programs and health professionals should encourage frozen FV as another way to increase FV consumption.
水果和蔬菜(FV)的摄入量仍然低于 2015 至 2020 年美国人饮食指南的建议量。本研究旨在评估平均 FV 和冷冻 FV 的摄入量以及其对 10 个年龄组不同性别营养素摄入量的影响。
使用 2011 至 2014 年全国健康和营养调查(NHANES)和 2011 至 2012 年食物模式等效数据库的数据,估计食物中营养素的摄入量和 FV 的摄入量。按性别比较平均值,并比较冷冻 FV 消费者与非消费者之间的差异。
平均而言,冷冻 FV 的消费者摄入的总 FV 明显多于非消费者,但两组均未达到每天推荐的 FV 份量。冷冻 FV 消费者的膳食纤维、钾、钙和维生素 D 等营养素的摄入量明显较高,而钠的摄入量较低。1 至 18 岁儿童的平均能量摄入量在食用冷冻 FV 的儿童中明显较低,但成人食用冷冻 FV 不会影响其能量摄入量。冷冻 FV 成年消费者的平均体重指数明显较低。
本研究结果表明,当不食用冷冻 FV 时,其他形式的 FV,如新鲜、罐装或干燥的 FV,不能填补 FV 摄入量的差距。政府食品计划和卫生专业人员应鼓励食用冷冻 FV,将其作为增加 FV 摄入量的另一种方式。