(1) Background: The aim of the research was to expand the current knowledge about the diets of female university students in relation to the frequency of their sports activity (SA). We were specifically interested in the eating frequency, the distribution of the amount of food during the day, including breakfast in the diet, and the timing of dinner before bedtime. (2) Methods: The sample in this cross-sectional research consisted of 1055 female freshmen university students from the two universities in eastern Slovakia. Data were obtained through a set of selected questions from a questionnaire battery. (3) Results: We found a significant rank–order correlation between the frequency of meals during the day and the level of SA, as well as between the consumption of breakfast and SA. Furthermore, we found a significant indirect dependence on the distribution of meals during the day and SA. The results indicate a better dietary pattern of the more active female students in terms of the frequency of meals. (4) Conclusions: “The healthy behaviour”, which includes proper diet and regular SA, was monitored in the cross-sectional research we conducted, the results of which consistently point to opportunities for further improvement. There is a need for universities to develop professionally targeted programmes that will enable novice students to modify their health behaviours during their studies.