Mobile phones are a more convenient device for people all over the world for daily activities. Apart from the ease and automation of its use, it also minimizes the overall time needed for a task manually. In contrary, to the scenario, few years back smart mobile phones were affordable and each day a new upgrade in the technology was established each day. With keeping pace with the increasing use of smart phone, we have created an android application naming it, Health Guardian. The ultimate goal of this application is to notify about the calorie level in a food and monitor the amount of calorie burned after performing exercise. The additional benefit that the app will provide is the identification of food calories you consume. The application features a monitoring system to count your daily nutrients and food consumption. The list of registered food items along with their calorie amount and other details are also recorded within the app. The early test of the app found were very helpful, as it will notify the user about the calorie level of the food and what exercise will burn out those calories. The results obtained were very positive and we look forward to increasing the users of this app throughout.