Final answer:
On average, a 15-year-old boy may need 2500 to 3200 calories daily if inactive, escalating to 2800 to 3800 calories with vigorous exercise. Individual needs vary and should reflect the boy's activity level, growth needs, and whether they are in a growth spurt.
Step-by-step explanation:
The number of calories a rapidly growing 15-year-old boy requires can vary significantly due to factors such as activity level, metabolism, and overall health.
However, on average, teenage boys in this age group might need about 2500 to 3200 calories per day if they are not particularly active. This number increases to approximately 2800 to 3800 calories per day for those who are very active, such as teenage athletes engaging in regular vigorous exercise.
It is important to understand that these figures are averages and individual needs may differ. A nurse advising parents would likely emphasize that caloric intake should be tailored to the boy's specific activity level and growth needs, ensuring a balanced diet that supports healthy development.
Factors to consider include whether the teen is experiencing a growth spurt, actively participating in sports, or has a more sedentary lifestyle. Balancing caloric intake without going too far in either direction is essential. Too few calories may hinder growth and development, whereas excess calories can lead to unhealthy weight gain.