The purpose of this study was to examine prepurchase information seeking behavior and postpurchase satisfaction levels for the diet products. Ninty-one women who were living in Cheongju-city area were selected. The survey was conducted during 1996. 7. 25$sim$8. 12, and questionnare and SAS PC program were utilized. The major findings were as follows : 1. The level of information seeking activity was found to be rather low level, 9.2/20. 2. Friend colleague neighborhood were found to be the most important information source. 3. The level of information seeking according to diet product attributes was found to be rather high, 2.5/3. 4. The level of satisfaction was found to be rather low, 1.6/3. 5. Positive relationships were found between satisfaction level and friend colleague neighborhood, and family relatives out of 6 information sources.