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Abstract：
Establishing healthy dietary habits during adolescence and young adulthood is critical for long-term health.
This study assessed the prevalence of meeting US Dietary Guidelines and trajectories in dietary intake for 4 MyPlate food groups during the transition from adolescence to young adulthood.
Three waves of surveys and food frequency questionnaires were collected as part of Project EAT (Eating and Activity in Teens and Young Adults), a 15-y longitudinal study. Adolescents (n = 1177, 57% female, mean ± SD age 15.0 ± 1.5 y) were recruited in 1998-1999 in Minneapolis-St Paul, Minnesota public schools and were resurveyed twice in young adulthood at mean ± SD ages 25.3 ± 1.5 and 31.1 ± 1.5 y. The prevalence of meeting guidelines for each MyPlate food group was calculated at each time point. Mean daily servings were compared over 5 y in young adulthood through the use of paired t tests. Adjusted least-squares means were calculated to compare dietary intake in young adulthood across quartiles of adolescent intake.
Adolescents had the highest prevalence of meeting dietary guidelines for fruit (37% for females and 30% for males) and dairy (53% for females and 61% for males); young adults >30 y had the highest prevalence of meeting dietary guidelines for vegetables (19% for females and 8% for males) and whole grains (23% for females and 17% for males). From the mid-twenties to early thirties, vegetable intake increased, whereas dairy intake decreased. Dietary intake generally tracked over time with individuals in the lower quartiles of intake at adolescence generally continuing to have low intake in young adulthood.
Although the prevalence of meeting dietary guidelines for whole grains and vegetables, and daily servings of vegetables increased with age, improving intake of whole fruit, whole grains, dairy, and vegetables remains key during the transition from adolescence to young adulthood.
This study assessed the prevalence of meeting US Dietary Guidelines and trajectories in dietary intake for 4 MyPlate food groups during the transition from adolescence to young adulthood.
Three waves of surveys and food frequency questionnaires were collected as part of Project EAT (Eating and Activity in Teens and Young Adults), a 15-y longitudinal study. Adolescents (n = 1177, 57% female, mean ± SD age 15.0 ± 1.5 y) were recruited in 1998-1999 in Minneapolis-St Paul, Minnesota public schools and were resurveyed twice in young adulthood at mean ± SD ages 25.3 ± 1.5 and 31.1 ± 1.5 y. The prevalence of meeting guidelines for each MyPlate food group was calculated at each time point. Mean daily servings were compared over 5 y in young adulthood through the use of paired t tests. Adjusted least-squares means were calculated to compare dietary intake in young adulthood across quartiles of adolescent intake.
Adolescents had the highest prevalence of meeting dietary guidelines for fruit (37% for females and 30% for males) and dairy (53% for females and 61% for males); young adults >30 y had the highest prevalence of meeting dietary guidelines for vegetables (19% for females and 8% for males) and whole grains (23% for females and 17% for males). From the mid-twenties to early thirties, vegetable intake increased, whereas dairy intake decreased. Dietary intake generally tracked over time with individuals in the lower quartiles of intake at adolescence generally continuing to have low intake in young adulthood.
Although the prevalence of meeting dietary guidelines for whole grains and vegetables, and daily servings of vegetables increased with age, improving intake of whole fruit, whole grains, dairy, and vegetables remains key during the transition from adolescence to young adulthood.
摘要：
在青春期和成年期建立健康的饮食习惯对于长期健康至关重要。
这项研究评估了在从青春期到成年期的过渡期间，4种MyPlate食物组的饮食摄入符合美国饮食指南和轨迹的患病率。
收集了三波调查和食物频率问卷，作为EAT项目（青少年和年轻人的饮食和活动）的一部分，15年的纵向研究。青少年(n=1177，57%为女性，平均±SD年龄15.0±1.5y）于1998-1999年在明尼阿波利斯-圣保罗招募，明尼苏达州的公立学校，在成年后的平均±SD年龄分别为25.3±1.5和31.1±1.5。在每个时间点计算每个MyPlate食物组的满足指南的患病率。通过配对t检验比较了成年后5年的平均每日份量。计算了调整后的最小二乘平均值，以比较青年期的饮食摄入量和青少年摄入量的四分位数。
青少年在水果（女性为37％，男性为30％）和乳制品（女性为53％，男性为61％）方面达到饮食指南的患病率最高；30岁以上的年轻人在蔬菜（女性为19％，男性为8％）和全谷物（女性为23％，男性为17％）方面达到饮食指南的患病率最高。从二十多岁到三十出头,蔬菜摄入量增加，而乳制品摄入量下降。饮食摄入量通常随着时间的推移而追踪，青春期摄入量较低四分位数的个体通常在成年后继续低摄入量。
虽然满足全谷物和蔬菜饮食指南的流行，每天的蔬菜随着年龄的增长而增加，提高整个水果的摄入量，全谷物,乳制品，在从青春期到成年的过渡过程中，蔬菜仍然是关键。
这项研究评估了在从青春期到成年期的过渡期间，4种MyPlate食物组的饮食摄入符合美国饮食指南和轨迹的患病率。
收集了三波调查和食物频率问卷，作为EAT项目（青少年和年轻人的饮食和活动）的一部分，
青少年在水果（女性为37％，男性为30％）和乳制品（女性为53％，男性为61％）方面达到饮食指南的患病率最高；30岁以上的年轻人在蔬菜（女性为19％，男性为8％）和全谷物（女性为23％，男性为17％）方面达到饮食指南的患病率最高。
虽然满足全谷物和蔬菜饮食指南的流行，
