Abstract
While the relationship between food, health and disease are discussed in a wide variety of ways throughout the world, only nutrition can survive as a field of life sciences. Because food components were analyzed from the source of life to discover that the nutrients, is related to the generation of nutrients. The nutrition has contributed to the prevention and treatment of many diseases caused by malnutrition and unbalanced diet. In our country, malnutrition in the world war II was solved in a short period of time by the appropriate distribution of food through the school lunch and nutritional guidance. However, since about 1980 obesity and lifestyle-related diseases by over nutrition, on the other hand underweight and new malnutrition in young women by the diet and patients and elderly victims have become the problems. This trend is seen in the world, Double Burden Malnutrition is called. While being affected by a large amount of information, the westernization of diet and eating habits traditional has been handed down on a regular basis in the regional home, nutrition problem are more complex and individualized. In order to solve such a problem, intervention study largescale use for the purpose of improvement of diet and nutrition, and how the nutritional management based of human nutrition has been held, its limit and effectiveness have been discussed. In recent years, it has also started study the effects of time and speed of eating, the physical properties of the food, such as eating more order types of food, combination, cooking method, to eat on the biological while being quantity of same nutrition. It is necessary to consider not only “what eat and how much” but also “how to eat”.