To study a serviceman's satisfaction with how nutrition was organized, the author elaborated a questionnaire containing the sections "nutrition organization quality assessment" and "mess food intake condition quality assessment". Different categories of military men taking food were inquired in a mess. The affirmation "I have no after-meal heartburn" became evidence that the sample was heterogeneous. For detailed analysis, the total sample was divided into two subgroups: those who had (Subgroup 1) and had not (Subgroup 2) a burning sensation after eating. Subgroup II servicemen gave lower scores on the questions about the comfort of food intake, the quality of dishes, a general attitude towards nutrition organization in the mess than did Subgroup I. The study has verified that the developed subsistence quality assurance system is of importance. The questionnaire has provided a valid assessment of the quality of the services given by the mess and revealed a reason for low scores.