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South Indian tiffin is generally kidney-friendly — fermented rice batters (idli, dosa), upma, and rice-based dishes are light on potassium. The traps are the side dishes: coconut chutney and sambar add potassium and salt. This list ranks the staples so you know what fits your budget.
South Indian staples ranked by potassium — idli, dosa, upma, sambar and rice dishes for a renal diet.
Values are per 100g (USDA FoodData Central / ICMR-NIN). Your actual serving may differ — always multiply by your portion. For a personal plan, check each food's guide for serving advice, leaching techniques, and safer alternatives. Your nephrologist and renal dietitian set YOUR individual limits.
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This content is a general reference, not medical advice, a diagnosis, or a treatment plan. Do not change your diet, fluids, medicines, or dialysis plan without your nephrologist or renal dietitian. Individual recommendations depend on your labs, medications, conditions, and care plan.