Final answer:
Until age 9, the recommended nutrient values, or Dietary Reference Intakes (DRIs), are the same for boys and girls. After age 9, nutrient recommendations start to differ due to variations in growth and development.
Step-by-step explanation:
Until age 9, the recommended nutrient values, or Dietary Reference Intakes (DRIs), are the same for young boys and girls. These guidelines, which include considerations for calorie intake, are designed to provide adequate nutrition and support healthy growth for children. After the age of 9, the caloric needs and nutrient recommendations for boys and girls begin to diverge due to variations in their growth and physical development. For instance, starting at around age 11, boys generally require more calories each day compared to girls, reflecting higher average energy needs. Understanding these recommendations, including that they are averages and that individual needs may vary, helps in tailoring a balanced diet for a growing child.