Metabolism

This information is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before making lifestyle changes.

Metabolism refers to the sum of all chemical processes by which the body converts food into energy and building materials. Understanding how metabolism works is foundational to making sense of weight management, energy balance, and the physiological responses to diet and exercise.

This section covers the key concepts in metabolic science: how basal metabolic rate is estimated, how caloric balance influences weight change over time, how sleep and stress affect metabolic function, and how body composition differs from what a scale alone can tell you.

The articles here are grounded in clinical research and designed to provide accurate models for thinking about energy and weight—ones that hold up better than simplified rules of thumb and may give you a more useful basis for making decisions about diet and activity.