Evaluation of the Planetary Health Diet Included in a Lifestyle Program in Overweight or Obese Mexican Adults.

The EAT-Lancet Commission proposed the planetary health diet as a strategy to achieve health and sustainability goals. Currently, its effect in the treatment of obesity has not been evaluated. The main aim is to evaluate the efficacy of the planetary health diet included in an intensive lifestyle change program compared to a waiting list group, on weight and body fat at 4 months, in Mexican adults with overweight or obesity, in an online modality. This study is a 4-month randomized controlled trial, in an online modality in individuals with overweight or obesity randomly assigned 1:1:1 to one of three groups: 1) planetary health diet, 2) waiting list and 3) low fat-diet. The primary outcome is the difference in change in weight (kg) and body fat (kg) at 4 months between the planetary health diet group and the waiting list group. Comparison with the low-fat diet group will be an exploratory analysis. Secondary variables include changes in waist circumference, BMI, blood pressure, and health-related quality of life. Between group comparisons will be analyzed by intention-to-treat. The protocol was approved by a Research Bioethics Committee.