We don't eat continuously. The beginning and end of each eating episode are governed by three main types of biological signals that follow one another: first comes the sensation of hunger, which, via internal signals, encourages us to eat. During the meal, the sensation of satiation gradually appears, prompting us to stop eating when we're full. This is followed by a phase of satiety, which curbs our desire to eat for a variable length of time, until hunger returns.

For further information, we recommend that you consult :

- The MangerBouger.fr website
- The Santé Publique France website, and its nutrition and physical activity section
- The ANSES website (Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail), and its section on food and human nutrition.
- The French Nutrition Society website
- The report of the PNNS, Programme Nationale de Nutrition et Santé (2018-2023), which defines all nutritional recommendations.