Obesity phenomenon has become a significant issue over the world. Obesity has various negative consequences that might impact not only the health but also the social and the economic issues. Current studies reveal the lack of patients' commitment to the doctors' instructions. In this paper, we propose a new cloud-based model with ultimate aim to monitor obese patients' health condition and behavior constantly under a real-time vision of the caregiver. The proposed model provides a technical method to record, disseminates, and share knowledge and awareness among patients and caregivers. This model utilizes wireless body sensor network devices to measure heart rate; mobile web-service as a middleware to process the data from/to cloud knowledge-base and a caregiver backend/dashboard for the real-time monitor. A live test demo of the model experimented on 55 subjects to check its applicability and cost-effectiveness. The results were promised and prove its ability to help overcoming this disease.