Final answer:
Energy balance is the concept of balancing calories consumed and calories burned. However, there are limitations to energy balance due to factors such as genetics and metabolic differences.
Step-by-step explanation:
Energy balance is the concept of balancing the calories consumed through food and beverages with the calories burned through physical activity and body processes. When energy intake is equal to energy expenditure, a person is in energy balance. However, there are limitations to energy balance, such as genetic factors, metabolic differences, and individual variations in energy expenditure. For example, some individuals may have a higher metabolic rate and burn more calories even at rest, while others may have slower metabolism and be more prone to weight gain.
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