Sustainable healthy diets from the lens of behavioural science

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Fresán, Ujué | Paquito, Bernard | Soares, Vera Araujo | Lloyd, Simon | Housni, Fatima Ezzahra | Chevance, Guillaume

Edité par CCSD -

Changes in the food system are necessary for attaining the Sustainable Development Goals. A shift in current dietary patterns, especially in developed countries, is one of the most effective measures to achieve a sustainable and fair food system. In this viewpoint, we i) contend why, alongside structural changes to the food production and distribution systems, individual behaviour change interventions, especially in high-income countries, are essential, ii) based on a scoping review, describe a set of behaviour change techniques that can contribute to the design of such interventions, iii) highlight the main weaknesses of previous eating behaviour interventions and suggest how they may be overcome, notably by addressing negative spillovers and trade-offs, and iv) provide an actionable definition of sustainable healthy diets for behaviour change practitioners and educators. Altogether, this viewpoint offers a relevant starting point for the design of future interventions targeting individual behavioural change for sustainable healthy diets.

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