What is the principle of energy balance?

The principle of energy balance is fundamentally based on the relationship between the number of calories consumed through food and drink and the number of calories expended through physical activities and bodily functions. When the calories consumed equal the calories burned, the body maintains its current weight, which is the essence of energy balance.

This principle is crucial for understanding weight management, as achieving a stable weight is contingent upon this equilibrium. When intake matches expenditure, the body is in a state of homeostasis, allowing for normal physiological functions. When more calories are consumed than burned, the body stores the excess as fat, leading to weight gain. Conversely, when fewer calories are consumed than burned, it results in weight loss.

Recognizing this balance is critical for individuals aiming to manage their weight effectively, whether the goal is to maintain, lose, or gain weight. Ultimately, understanding the principle of energy balance provides a foundation for developing healthy eating and exercise habits.