EHSH is able to recognize a food object, the image of which is captured by the user’s smartphone, and can estimate the total number of calories in the food object. For recognizing the food portions in the meal, we proposed two approaches in [6–8]. In our first approach [6], we implemented a Support Vector Machine (SVM) based parallel classifier, which was implemented in parallel in multiple cloud instances. In our second approach, we used deep learning [8], which resulted in higher accuracy as compared to [6,7].