Sensor-based Just-in Time Adaptive Interventions (JITAIs) Targeting Eating Behavior

Inclusion Criteria: * Body mass index (BMI) between 27 and 45 kg/m-squared * Weight stable within 5% in the past 6 months * Self-reports basic familiarity with use of a smartphone Exclusion Criteria: * Diagnosed diabetes (type 1 and 2) * Any poorly controlled medical condition that could affect weight and/or eating behavior (e.g., hypothyroidism) * Medical conditions or use of medications or diets/supplements known to affect energy regulation or appetite * Difficulty chewing or swallowing * Diagnosed eating disorder * Night or shift work * Current participation in a weight loss program * History of bariatric surgery * Current pregnancy or lactation within the past 1 year, or planning a pregnancy during the study participation period * Consuming a medically-prescribed or unusual diet (e.g., macrobiotic) * Food allergies or sensitivities, or other conditions which result in avoidance of a wide range of foods (e.g. celiac disease, tree nut allergy) * Reported recreational drug use * Report of conditions that would significantly interfere with an ability to follow the protocol including terminal illness, substance abuse, or other significant uncontrolled psychiatric problem