According to the Healthy Eating Index (HEI), which age group follows the lowest quality diet?

The selection regarding the age group that follows the lowest quality diet being teens (ages 9-18) is supported by various studies and analyses that highlight the dietary patterns typically observed in adolescents. During adolescence, individuals often experience increased independence in food choices, which can lead to a higher consumption of fast foods, sugary beverages, and processed snacks, contributing to a lower quality diet.

Additionally, this age group may exhibit dietary habits influenced by peer dynamics, marketing targeted at younger populations, and a focus on convenience rather than nutrition, all of which can detract from their overall dietary quality as assessed by the Healthy Eating Index (HEI). Consequently, the dietary intake for this group often lacks essential nutrients found in fruits, vegetables, whole grains, and lean protein, factors that are crucial for proper development and long-term health.

In comparison, younger children (ages 0-8) often have healthier dietary practices as they are usually guided by caregivers who may prioritize nutrition. Adults (ages 19-30) are often aware of health trends, and seniors (ages 65+) may focus on nutrient-rich foods that cater to their health needs. These considerations illustrate why teens, in particular, stand out in terms of dietary quality according to the HEI.