We make dieting smart. We design online weight loss tools for determing the daily caloric balance by analysing the body with the help of bathroom scale readings and evaluating the efficacy of weight loss techniques. Next determing the individual causes of not losing enough weight and giving cause-related personalised weight loss advice. Our tools will help the dieters to beat the three major problems: 1. The daily chores of food logging and calorie counting 2. Misunderstanding the root causes of not losing enough weight 3. Not knowing the most personally beneficial weight loss techniques Our products Smart Diary - monitors the fat burn, daily caloric balance and rates the efficiency of the weight loss techniques. Products in development Virtual Advisor - interviews the dieter to determine the causes of not losing weight and gives cause related advice. Mobile buddy - reminds dieter about meal and workout times and records the data. Social support network - Keeps the dieter motivated accompanying his/her family, friends and colleagues for accountability, support and recognition.