The trans-fatty acid content of daily meals in a university refectory and a dormitory cafeteria was measured for 7 days. The trans acid content, mainly t-18: 1, of the meals per day was on average 0.63g/day, ranging from 0 to 1.29g/day. The observed values were lower than those estimated in the recent national nutrition survey, the annual statistics of edible fats and oil, and the fatty acid composition data for refined edible processed fats, i. e. approximately 1.8g/day.