MORE VIDEOS
Explore more

Eating with CKD (Not on Dialysis)

When kidneys are damaged but dialysis has not started, food choices can ease the workload on the kidneys, help control blood pressure, and slow further damage. The pattern is not a single strict diet — it is a set of adjustments that grow with your stage and your blood results.

Eating with CKD (Not on Dialysis)
Eating with CKD (Not on Dialysis) — illustrative image

The basic pattern

There is no single kidney diet for chronic kidney disease (CKD) before dialysis. In the early stages, eating well mostly means a balanced plate built on fresh foods, with less sodium and fewer heavily processed items. As kidney function falls, your team may ask you to pay closer attention to potassium, phosphorus and protein, guided by your blood tests rather than by the calendar.

Think of it as a dial, not a switch: the stage of CKD, your blood pressure, diabetes and lab results decide how far each dial turns. A renal dietitian can translate your results into a pattern that still feels like your food.

What changes, and why

Sodium first: damaged kidneys remove sodium poorly, so it holds water in the body, raises blood pressure and causes swelling. Most adults with CKD are commonly advised to aim for less than 2,300 mg of sodium a day (National Kidney Foundation guidance) — your team may set a different goal.

Protein in moderation: breaking down protein produces waste the kidneys must clear. Eating very large amounts adds to that workload, while eating too little risks muscle loss — which is why your dietitian sets the amount rather than this page doing so.

Potassium and phosphorus when labs say so: in early CKD these often need no restriction. If blood levels rise, your team will ask you to choose lower-potassium and lower-phosphorus foods more often — the food pages in this section are rated to help.

Weight and blood sugar: keeping a healthy weight and steady blood sugar protects the kidneys you have, so added sugar and oversized portions matter even before any mineral restriction starts.

A sample day

Breakfast: Porridge oats or eggs with toast, plus a small apple or a handful of berries. Coffee or tea.

Lunch: A sandwich on white or sourdough bread with fresh chicken, lettuce and cucumber, or a rice bowl with vegetables and a modest portion of chicken or fish.

Snack: Unsalted popcorn, rice cakes, or fresh fruit such as grapes or pineapple.

Dinner: Grilled fish or chicken with rice, green beans and cabbage, flavoured with herbs, garlic and lemon instead of salt or bottled sauces.

Drinks: Water through the day; limit cola and other dark sodas, which carry added phosphorus.

A sample only — quantities and choices are set by your own targets, blood results and appetite. Ask your renal dietitian to adapt it.

Related conditions

Related procedures & tests

Related symptoms

Related anatomy

Watch: related videos

▶ WatchChronic kidney disease ▶ WatchUnderstanding kidney function tests for chronic kidney disease monitoring ep 17 kidneyzone ▶ WatchKidney transplantation for chronic kidney disease ep 32 kidneyzone

Frequently asked questions

Do I need to limit potassium as soon as I am told I have CKD?

Not usually. Many people in the early stages keep normal potassium levels and need no restriction. Potassium is limited when blood tests show it running high, or when certain medicines raise it. Never restrict it on your own — too little potassium is also harmful — and never use a potassium-based 'lite' salt substitute unless your team says it is safe for you.

Should I follow a low-protein diet to protect my kidneys?

Protein advice in CKD is individual. Very high protein intakes are generally discouraged, but cutting protein hard without supervision can cause malnutrition and muscle loss, which are dangerous in their own right. If a lower-protein pattern is right for you, your nephrologist and renal dietitian will set the amount and monitor you.

These pages are general education about eating with kidney disease, dialysis or a kidney transplant. They are not medical advice and do not replace your own care plan. Kidney diets are individual: what is right for you depends on your stage, your blood tests, your medicines and your other conditions. Always talk to your care team or renal dietitian before changing what you eat, and never stop or change a medicine because of something you read here.

← Kidney Diet home