Inclusion Criteria:  Kidney failure undergoing thrice-weekly maintenance hemodialysis 10 patients without diabetes mellitus, and 10 patients with type 2 diabetes mellitus (T2D) that are being managed with lifestyle and/or long-acting insulin  Exclusion Criteria:  Moderate hyperkalemia (>6.5 mEq/L) in the last 6-months. Potassium-lowering medications Gastrointestinal (GI) diseases that may alter potassium digestion and absorption. Low hemoglobin concentrations (<10.0 g/dL). Deemed to be inappropriate for the intervention by Study Nephrologist based on cognition, prognosis, or pending treatments Women who are pregnant or who plan to become pregnant