The purpose of the study was to provide basic information on improvement in the athletes’ performance and nutrition education by measurement of their body composition before and after the strength training. In addition, the study investigated the nutritional status of the students. Important observations and conclusions of the study follow: In terms of body composition changes before and after strength training, male canoeists showed a statistically significant decrease in weight(p<.005), body mass index (BMI, p<.001) and body fat, while there were no statistically significant changes among female canoeists. The average energy intake and caloric intake per kilogram of body weight (kcal/kg) of male athletes was 5,344.6 kcal and 86.1 kcal/kg, respectively, while that of female athletes was 4,332.3kcal and 72.7kcal/kg. The ratio of carbohydrates to lipids to proteins was 62: 22: 16 for male athletes and 59: 24: 17 for female athletes. The mean carbohydrate intake per kilogram of body weight was 13.2g/kg/day for males and 10.7g/kg/day for females. In addition, the mean protein intake per kilogram of body weight was 3.3g/kg/day for males and 3.0g/kg/day for females. As a result, it was estimated that carbohydrate and protein intake of male and female athletes was adequate. The male caloric intake from snacks was 542kcal on average and the female intake was 610kcal on average. An analysis of snack-eating patterns showed that milk was the most frequently consumed item, followed by chicken, eggs and potatoes. Both male and female canoeists were found to have a sufficient intake greater than the recommended dietary allowances(RDAs) for all nutrients.