The most serious consequence of a middle school student's poor diet is an ongoing failure to achieve their physical best. Which of the following describes the concept of weight gain and loss based on energy balance?
1) To lose weight a person must focus on the ratio of weight to height and on being 90
2) To lose weight a diet must focus on the number of calories ingested and their nutrient density to equal the number of calories expended.
3) To lose or gain weight a diet must focus on the using diuretics to impact the absorption of calories in the body.
4) To lose or gain weight a diet must focus the balance of body systems that perform at a level beyond normal in order to adapt and improve the balance between physiological function and fitness.
