It is reported that 45% of modern human diseases are related to lifestyle, and 60% of the factors of death (67% in China) are related to lifestyle, here is an introduction to what are “lifestyle diseases”. 1, malignant tumors; 2, cardiovascular diseases: hypertension, coronary heart disease, stroke, arteriosclerosis, etc.; 3, endocrine metabolic diseases: diabetes, obesity, hyperlipidemia, hyperuricemia, gout, osteoporosis, etc.; 4, digestive system diseases: chronic gastritis, gastric ulcer, fatty liver, etc.; 5, other diseases: cervical spondylosis, frozen shoulder, etc.; some of these diseases can be prevented, some are can be controlled and some can be improved, which require standardized clinical nutrition therapy or intervention.