Association between sustainable dietary patterns and body weight, overweight, and obesity risk in the NutriNet-Santé prospective cohort (2020)

Seconda L, Egnell M, Julia C, et al. Association between sustainable dietary patterns and body weight, overweight, and obesity risk in the NutriNet-Santé prospective cohort. Am J Clin Nutr. 2020; 112(1): 138-149. doi: 10.1093/ajcn/nqz259

From the abstract: Improving the sustainability of current food systems may prevent future public health, environmental, and social concerns. Our objective was to investigate the associations between sustainable dietary patterns, assessed using the Sustainable Diet Index (SDI), and the risk of obesity, overweight, and weight gain in French adults, with a prospective design.

The construction of this index was based on the FAO definition of food sustainability. According to the latter, the SDI includes 7 indicators categorized into 4 subindexes: environmental, nutritional, economic, and sociocultural.

  1. land occupation, 
  2. greenhouse gas emissions, 
  3. primary energy consumption (grouped together in pReCiPe), 
  4. difference between energy need and intake in absolute terms, 
  5. probability of adequate nutrient intake (PANDiet), 
  6. contribution of organic food to diet, 
  7. proportion of income devoted to diet, place of food purchase, and ready-made product

The findings support a potential protective role for more sustainable diets to prevent the risk of weight gain, overweight, and obesity.