Obesity is the major cause of overweight this leads to the type II diabetes, heart disease, and cancer.Measuring the food is very important for a successful healthy diet. Measuring calorie and nutrition in daily food is one of the challenge methods. Smartphone plays a vital role in today’s technological world using this technique will enhance the issue in intake of dietary consumption.In this project, a food image recognition system for measuring the calorie and nutrition values was developed. After taking the food image the color, shape, size and texture features are extracted and it is given to the K-nearest neighbor (KNN) for recognizing the food and then the calorie value is measured with the help of nutrition table.