The different diets
In the following, two different diets are presented, which can be used in case of renal failure (niral failure).
- Potato-Egg-Diet
- Swedish Diet
The Potato-Egg Diet (KED)
according to Kluthe and Quirin (protein-selective diet) It is a low-protein and protein-selective (only certain protein from certain foods is allowed) diet, in which the wholesomeness of the protein is achieved by protein mixtures. Protein or protein mixtures are considered to be wholesome if they contain all essential amino acids in sufficient amounts. The lower the amount of protein that has to be added to reach this goal, the higher the valency.
A mixture of potatoes and egg in a ratio of 3:2 has the highest biological value. Other favorable protein mixtures are milk and wheat (3:1) or beans and egg (1:1). These protein mixtures are to be regarded as the main carriers of the essential amino acids and must make up half of the daily dietary protein intake.
Depending on the stage of chronic renal insufficiency, the potato and egg diet can be prescribed with 25 to 30 g protein daily or 40 to 45 g daily. The dietary prescription is dependent on creatinine and urea levels in serum. With creatinine 3-6 mg/dl and urea 100 to 150 mg/dl, the potato and egg diet is prescribed with 40 to 45 g protein daily.
With creatinine of > 6 mg and urea >150 mg/dl, no more than 25 to 30 g of protein may be consumed daily. This corresponds to a protein intake of 0.4 or 0.6 g per kg of body weight. Principle of the diet: Reduce protein intake and supply 50 % in the form of protein mixtures, mainly a potato and egg mixture.
The potato and egg diet does not offer much variety in terms of dietary choices due to its focus on certain food mixtures (mainly potato and egg as protein suppliers). Recipes and daily plans for the Potato-Egg-Diet can be found in the book by Kluthe and Quirin, Anleitung zur Kartoffel-Ei-Diät, Diätbuch für Nierenkranke. Here you can see an example of the Potato-Egg-Diet.
- Supply sufficient calories. 35 to 37 kcal per kg body weight.
- Use of high-quality vegetable oils
- Taking of water-soluble vitamins, minerals and trace elements according to medical prescription.
- 5 to 6 meals per day
- Depending on the severity of the symptoms, this diet can be prescribed: low-sodium (1200 mg of sodium daily, equivalent to 3 g of table salt)low-potassium (1600 – 2000 mg of potassium daily) or strictly low-potassium (< 800 mg of potassium daily)
- Fluid balance according to the basic rule: amount of urine excreted the day before plus 500 ml.
- A potato and egg diet can also be prepared for diabetics according to a doctor’s prescription.
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