Feasibility, Safety and Efficacy of a Predominantly Plant-based Diet in an Asian Population With Chronic Kidney Disease

Inclusion Criteria: 1. Age 21-79 (Only adults who can give consent will be recruited. Older adults aged 80 are not included to reduce the risk of confounding due to age-related frailty, sarcopenia and multimorbidity. Additionally, older adults may have different nutritional needs and energy requirements) 2. CKD stage 3-4 (baseline eGFR 15-60ml/min/1.72m2 for the past 6 months) 3. Willingness to see a dietitian and follow either a standard CKD diet or a predominantly plant-based CKD diet 4. On maximum tolerated dose of ACE-inhibitors (Angiotensin converting enzyme inhibitors) or ARB (Aldosterone receptor blocker) as determined by Renal Physician in charge 5. Able to provide informed consent Exclusion Criteria: * Transplant patients (who will tend to have more variable trajectories, immunosuppression related challenges etc which may make this study less feasible) * Pregnant or lactating patients (who have different nutritional requirements than the standard CKD patients) * Patients who were on any special diet for at least 1 month prior to recruitment (inclusive of * long-term vegans or vegetarians) - excluded because they already have stable dietary habits * Age \<21 or \>/= 80 (Avoid growing children who have different nutritional requirements and advanced elderly who are more likely to have malnutrition or sarcopenia due to other pre-existing causes) * Those who have seen a dietitian for CKD previously * Patients with severe ischemic heart disease, decompensated liver cirrhosis, malabsorptive diseases or malignancy * Patients with BMI \<18.5 or \>40 * Patients with glomerulonephritis, genetic kidney disease or polycystic kidney disease * Baseline serum potassium 5.0 and above * Patients who are unable to modify their diet due to socio-economic issues. * Exclude patients with acute kidney injury (AKI) in the past 6 months prior to study (unstable renal disease