Nutritional requirements increase in adolescence (10-19 years). These increases are vital to enable adolescents to reach their full physical, cognitive and development potential in adulthood. Good nutrition also contributes significantly to reducing episodes of illness and improving school retention and concentration. To maximise health and development in this group, nutrition must be integrated within policy and programmes targeting adolescents. This policy brief forms a part of a series developed by RESULTS UK to document best practice in integrating nutrition within policy, programmes and investments for Reproductive, Maternal, Newborn, Child, and Adolescent Health (RMNCAH). This brief focuses on the stage of adolescence, taking India as a case study.