Obesity Treatment Using an Internet-delivered Intervention Based on the Diabetes Prevention Program in Mexican Adults

This group will receive a 6 month long online behavioral change protocol adapted from the Diabetes Prevention Program. It includes 18 sessions, 12 delivered weekly (during the first 3 months) and 6 delivered biweekly (during the last 3 month period). A web page will be used to deliver the sessions, while the nutritional counseling will be delivered using video calls via Facebook chat. Participants will receive an hypocaloric (1200-1800 kcal, carbohydrates: 45-65%, fats: 20-35% and protein: 10-35%), personalized diet.

This group will only receive written information with recommendations on healthy eating. When the study has finished this group will receive a behavioral change protocol with nutritional counseling using a face-to-face format.