Sustainable food is a set of food practices that aim to provide adequate quality and quantity of food for human populations, both now and in the future, while being eco-friendly, affordable and cost-effective throughout the food chain.
To dig deeper into the subject:
In French: Sustainable food: a guide to understanding everything in 2024 (greenly.earth)
Healthy and sustainable eating, the basics | INRAE
Fast Facts – What are sustainable food systems? – United Nations Sustainable Development