Nutrition in Middle Childhood and Adolescence

Authors: Zohra Lassi, Anoosh Moin, Zulfiqar Bhutta

Introduction:
Adolescence is the period between childhood and adulthood. Patton and others (2016) further delineate this period as early adolescence (ages 10–14 years), late adolescence (ages 15–19 years), youth (ages 15–24 years), and young adulthood (ages 20–24 years). Definitions of age groupings and age-specific terminology used in this volume can be found in chapter 1 (Bundy and others 2016). Worldwide, there are nearly 1.8 billion people ages 10–24 years, constituting one-quarter of the total population; 89 percent of young people (ages 10–24 years) live in low- and middle-income countries (LMICs).