Our study has some limitations, which include: the lack of a sample size justification in terms of serum albumin and CRP concentrations (these calculations were made only for prognostic markers of malnutrition, which were included in the panel of our research), participants did not fully adhere to dietary recommendations (these reasons are discussed above), patients were not rigorously categorized according to their cause of end stage renal disease or used medications and patients sometimes did not eat the entire meal served before dialysis. The gene discussed is ALB; the disease is nutritional deficiency disease.