The objective of this study is to assess whether supplementation with resistant starch from the rice-flour coffee developed by EMBRAPA, as well as from an already industrialized product (Hi-Maize of Ingredion®) could modulate the intestinal microbiota of patients with CKD ( both patients under conservative treatment, such as dialysis treatment), as well as exerting a beneficial effect with respect to reducing levels of inflammatory markers of oxidative stress, uremic toxins and in addition, markers of cardiovascular disease.