HEMODEASE AND NUTRITION
The diet in dialysis
So, when your kidneys are not working, it is natural that they cannot get rid of the extra water and sodium (salt) that you have taken. For this reason, gaining weight in the intervals of dialysis, slowly creates edema (swelling) which appears low in the legs, face and of course in the abdomen, if the water that your body has retained is too much.
Potassium regulation becomes more important in patients who need dialysis. As kidney function decreases, potassium accumulates faster in the blood and its levels rise dangerously. If potassium restriction was necessary for you when you are in the early stages of CKD, this issue is now a big and very important part of your diet.
However, you should know that potassium, as mentioned above, is responsible for the normal functioning of muscles and kidneys. Also remember that the heart is also a muscle and of course potassium can affect its function. Thus, potassium, which is normally filtered in the kidneys and excreted in the urine, can sometimes act as a “toxic poison”in patients with impaired renal function when blood levels rise.
The amount of phosphorus you take in daily is part of your dialysis diet. Having normal levels of phosphorus in your blood can help prevent bone disease. As important as low phosphorus levels are in keeping bones in good condition, so important is the need for calcium supplementation. These two together (low phosphorus and high dietary calcium) are essential to prevent bone disease.
The best source of calcium and phosphorus is food and unfortunately, we have no way to increase the calcium in food without increasing the phosphorus (they are almost always together). So, most of the time to control the increased levels of phosphorus in the blood we are forced to take drugs that bind phosphorus in the intestine. However, we need to know which consumer foods contain a lot of phosphorus.
Consumer foods with a lot of phosphorus are:
- All nuts and peanuts
- Cereals, dried beans, lentils
- Milk and cheese products
- Soy products
A water-soluble vitamin supplement is most often needed in hemodialysis patients. Hemodialysis removes vitamins from the blood and thus their supplementation with exogenous administration is necessary.
Adaptation from “The Diet in Chronic Renal Insufficiency”, K. S. Mavromatidis, K I. Sombolos
Basic principles for regulating sodium intake from foods
1. Do not put a saltshaker on your table unless recommended by your doctor.
2. Do not use salt substitutes. These have potassium and of course will raise the levels of potassium in the blood. These have potassium and of course will raise the levels of potassium in the blood.
3. Canned foods are usually very high in sodium, so it is a good idea to check them before eating.
4. Avoid crackers, chips, and anything else that is definitely high in sodium.
5. Use fresh meat, poultry, and fish. Avoid smoked and salted meats or fish, as well as bacon. Avoid smoked and salted meats or fish, as well as bacon.