Eating Window and Sleep Disorders on Glycemic Control, Cardiovascular Risk, and Weight Loss

The study will be conducted at the Endocrinology and Hypertension Clinic of the São José do Rio Preto Medical School between 2026 and 2027, with the objective of collecting comprehensive data for an in-depth analysis of the participants. Eligible individuals will be randomly assigned to two intervention groups. Participants in the first group will follow a daytime eating window (7:00 a.m. to 7:00 p.m.), while those in the second group will follow a nighttime eating window (12:00 p.m. to 12:00 a.m.). Nutritional consultations will be conducted individually at five assessment points: Month 0 (baseline), Month 6 (end of first intervention phase), Month 9 (end of washout), Month 15 (end of second intervention phase), and Month 18 (follow-up). Each consultation will last approximately one hour per participant, and all participants will receive appointment reminders via phone or WhatsApp.