The function of the kidney is to remove harmful waste from the body, to concentrate urine and conserve electrolytes such as sodium. Dialysis assists the kidney by replacing its function and removing waste products. However some waste and fluid still accumulate and over time this could have a detrimental effect on your health.
Eating right can assist in controlling the build up of waste products in the blood and also prevent your kidneys from working too hard. Dietary changes are usually prescribed based on testing done by your doctor, common restrictions include fluid, protein, sodium, potassium and phosphate. A dietitian can advise and assist you regarding a diet that is individualized and tailored for your needs.