There are 3 techniques for assessing food intake: 24-hour recalls, which involve asking the person what they ate during the previous day (2 or 3 24-hour recalls will give you an idea of what they usually eat); food recording, in which the person records their food intake in a notebook over a period of several days; and frequency questionnaires, which collect the usual frequency of consumption of each food item from a pre-established list. A dietician or doctor can help you take stock.

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.