Chapter 14: Adolescent Nutrition

The chapter underscores how psychosocial development during adolescence, including the formation of personal values and ethical beliefs, significantly shapes dietary choices and eating patterns, such as the adoption of vegetarian or vegan diets. Nutritional assessment protocols incorporate body mass index percentile plotting for age, with classifications defining overweight status at the eighty-fifth percentile or higher and obesity at the ninety-fifth percentile or higher, alongside cardiovascular risk screening through blood lipid panel analysis. The chapter emphasizes that nutrition counseling with adolescents must employ collaborative, client-centered approaches that actively engage teens in setting realistic goals by highlighting immediate, personally relevant benefits such as enhanced energy levels, improved physical appearance, or athletic performance gains rather than focusing on distant disease prevention messaging. Special attention is devoted to adolescents following restrictive dietary patterns, particularly vegetarian and vegan approaches, requiring comprehensive nutritional assessment for potential deficiencies in iron, vitamin B12, and calcium, combined with evaluation for concurrent eating disorder behaviors. Physical activity recommendations are presented as a minimum of sixty minutes daily at moderate-to-vigorous intensity. The chapter also examines the school setting as a critical intervention point for adolescent health promotion, discussing the implementation of comprehensive wellness policies, federally supported meal programs including the National School Lunch Program and School Breakfast Program that adhere to stringent nutritional standards, and the application of behavioral economics principles, commonly referred to as choice architecture or nudging strategies, to facilitate healthier food selections within cafeteria environments.