In order to obtain the data for extreme food intake by Koream adults, the data of adult dietary survey undertaken in 1995 were used through statistical treatment, taking into account of dietary habits. Various food commodities amounting to 159 items were classified into 14 food groups and fractiles of 90th and 95th percentile of individual food items were computed on the assumption that the food consumption pattern exhibits a normal distribution. Most of the food items showed the ratio of fractiles to mean intake in the range of 2.0∼3.0 while the ratio greatly deviated from these values in items such as seasonings, spices, nuts, seeds and favorite beverages as well as most commonly-eaten or rarely-eaten foods.