The aim of the study is to present the way of nutrition of the Lublin high school students, particularly the differences related to sex. The examinations, which involved 386 students aged 15-20, were conducted using the author's questionnaire in 2004. The results of the chi2 test have revealed that girls consume fewer meals a day (p=0.01), more fruits (p=0.0001), prefer cooked (p=0.00006), vegetable dishes (p=0.0003) and non-carbonated water (p=000.2) compared to boys. Moreover, they pay attention to caloricity of meals (p=0.00001), their appearance (p=0.02) and expiry dates (p=0.00003). Boys more often consume their last meal after 8 p. m. (p=0.0003), eat quickly (p=0.01), favour choose prefer meat dishes (p=0.00004), preferably fried (p=0.00006), drink more liquids (p=0.003) including carbonated drinks compared to girls (p=0.00001).