The Personalized Diet is the uniquely designed diet for a person according to their body constitution, genes, environment etc. Personalized Genetic Diet is the more specific and healthy eating guide for the person. The goal of personalized Diet is to increase the health or to preserve the health by giving it proper medical, nutritional or genetic diet. Because every ‘body’ is unique and they respond differently to the same food. And that’s why the weight loss diet plan designed for one person sometimes doesn’t work to another person because they both have different genes or body type or physical structure. There is no diet plan in the word is the best diet for everyone.