High School

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John can maintain his current body weight of 165 lbs when his calorie intake:

A. Decreases
B. Increases
C. Remains constant
D. Fluctuates

Answer :

Final answer:

John can maintain his current body weight when his calorie intake remains constant. If the intake fluctuates or differs from his energy expenditure, his weight would change accordingly. For weight maintenance, caloric intake and expenditure need to be in balance. So the correct option is c.

Explanation:

The student's question pertains to maintaining a current body weight, which is influenced by caloric balance. This topic falls under the broader subject of health, specifically in relation to diet and energy expenditure. When considering the maintenance of body weight, it is essential to understand the principle that weight is regulated by the balance between calorie intake and calorie expenditure.

To maintain his current body weight of 165 lbs, John's calorie intake must remain constant. This means that the energy he consumes in the form of food and drinks should exactly balance the energy his body expends through basal metabolic rate (the energy used for basic body functions), physical activity, and processing the food he consumes.

If John's calorie intake decreases, he would begin to lose weight as his body would need to use stored energy to compensate. Conversely, if his calorie intake increases, he would gain weight as excess calories are stored as fat. If his calorie intake fluctuates widely on a regular basis, the result on his body weight would depend on whether the average intake over time is balanced with his expenditure.

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