What does the Energy Balance Equation indicate about body weight?

The Energy Balance Equation is a fundamental principle in understanding body weight regulation. It indicates that when energy intake—the calories consumed from food and beverages—equals energy expenditure, which includes the calories burned through basal metabolism, physical activity, and thermogenesis, body weight remains stable. This means that neither weight gain nor weight loss occurs under these conditions.

When the balance is maintained (intake equals expenditure), the body is in a state of equilibrium, which prevents any net change in weight. This critical concept underscores the importance of matching calorie intake with expenditure to maintain a desired body weight.

The other options introduce scenarios related to changes in body weight but do not align with the principle of energy balance as accurately as the correct answer. Understanding this equation allows individuals to better manage their weight through appropriate dietary and lifestyle choices.