The Additive Effect of Cognitive Behavioral Treatment (CBT) to Conventional Weight Loss Intervention Program for Young Adults With Intellectual Disabilities

Nutritional intervention: Subjects will be asked to attend weekly nutritional group's sessions and individual meetings with the dietician for nutritional treatment and follow up. Physical activity: All participants will be engaged in physical activity comprising 45-60 min training sessions 3 times a week (gym or walking).

Nutritional intervention: Subjects will be asked to attend weekly nutritional group's sessions and individual meetings with the dietician for nutritional treatment and follow up. Physical activity: All participants will be engaged in physical activity comprising 45-60 min training sessions 3 times a week (gym or walking). Behavioral treatment: This group will undergo behavioral treatment focusing on self control techniques using the CBT technique (cognitive behavioral therapy) which will be conducted by a clinical psychologist from "ONIM" in weekly group sessions.