Dialysis involves cleaning the blood outside of the body; this is performed by a machine in hemodialysis or by regular fluid exchanges in peritoneal dialysis. Patients on both types of dialysis have to be careful about the foods they eat, although hemodialysis patients do not receive treatment every day, so they need to be even more careful. Phosphorus, potassium, sodium and fluid levels can increase in between dialysis sessions and can cause health problems.
Potassium-rich foods are limited for those on hemodialysis because potassium builds up between dialysis treatments and can cause problems such as weakness, muscle cramps, tiredness, irregular heartbeat and, worst of all, heart attack. Potassium is found mostly in fruits, vegetables and dairy products. Certain fruits and vegetables are very high in potassium while others are lower. However, eating a large amount of a low-potassium food can cause potassium to add up to dangerous levels. Be aware that most foods contain some potassium — meat, poultry, bread, pasta — so it can add up. Butter, margarine and oils are the only foods that are potassium free.(If you have question ,you can ask a doctor )
Once you start dialysis you may need to follow a high-protein diet made up of high-quality protein, because protein helps maintain muscles and tissues. High-quality protein leaves less residue for the kidney to have to process. High protein foods include meat, fish, chicken, turkey and eggs, especially egg whites.
Sodium levels can become elevated when the kidneys are not functioning properly, leading to fluid retention in between dialysis sessions, according to Baptist Health Systems website. Patients on dialysis should limit sodium intake to avoid this problem. Canned foods contain large amounts of sodium and should be avoided as much as possible.
