There are several different methods to determine the excess fatty tissue; Body Mass Index (BMI) is the most commonly used one. Excess fatty tissue and obesity induce inflammation by causing fatty acids in increased levels. This can lead to type 2 diabetes in after days by inducing insulin resistance. Moreover, the existence of excess fatty acids causes changes in cell Wall structure. Excess fatty acids do not only accumulate in fatty tissue but also have negative effects on metabolism and organ functions by accumulating all tissues like pancreas, heart, muscle. In case of being more than 5 years in the limits of obesity, changes that occur in metabolism permanently make it possible for patients to lose weight on their own. In addition to this, it may become impossible to lose weight by adding new ones to them. For this reason, these people should get help from a dietician. These people who are under control with a list prepared specially for them by the dietician start to lose weight by increasing their motivation.