Because a dietitian is specialized in the weight-loss process that fits your body type and lifestyle. They can explain to you concretely what to eat, how much and which foods will help you to reach your goal faster. Additionally, a dietitian can create a tailored diet plan that is easy to follow without feeling like you are on a ‘diet’.  The reason why many people don’t succeed when working on their own is because they don’t know their body type and follow general advice which doesn’t fit their body and lifestyle!