Final answer:
The daily energy requirement must be in balance with caloric intake in order to not gain weight. If the calories consumed from food exceeds the energy expended by the body, excess energy is stored as body fat, leading to weight gain. To lose weight, the energy expenditure needs to be greater than the energy consumed.
Step-by-step explanation:
The daily energy requirement must be in balance with caloric intake in order to not gain weight. If the calories consumed from food exceeds the energy expended by the body, excess energy is stored as body fat, leading to weight gain. To maintain weight, it is important to monitor food portions and ensure that the energy consumed meets the energy expenditures required for body functions and activity.
For example, if someone consumes 2000 calories but only burns 1500 calories through their daily activities, the excess 500 calories will contribute to weight gain.
To lose weight, the energy expenditure needs to be greater than the energy consumed. This can be achieved by increasing physical activity or reducing calorie intake.