Mobile health tracking applications are in abundance over the last years, with applications such as fitness tracking, photo diet tracking for weight loss and diet reporting applications. These applications are used for self-assessment, dynamic feedback and motivation of the users, while some more recent studies revealed that the data from these applications can be beneficial for experts in advising their clients. In this work, a real-time nutrition and fitness tracking web platform is proposed that enables experts to track the progress of their clients (even) in real-time or based on their work schedule, so as to establish a more holistic view of clients' progress. The platform aims to support experts in providing the best guidance and advice on a nutrition and fitness plan. The web platform was developed, used and evaluated by both clients and experts, which showcased the importance of this real-time expert-user interaction.