Reinhold Kluthe is a German internist and nephrologist, who has great merits in modern nutrition therapy and nutritional science. In particular, he has researched how patients with renal failure or liver failure can be optimally nourished while sparing the damaged organs. For example, the kidney can be stressed when the diet is high in protein.

Proteins contain amino acids and are vital for humans. While some amino acids can be produced by the body itself, many other amino acids must be taken in with food. However, people with kidney insufficiency can only fulfil a limited metabolic function (see: Function of the kidney), with the consequence that protein consumption can further damage the kidney and lead to damage in the body. Therefore, a diet must be aimed at that is gentle on the kidneys – “nephroprotective” – and at the same time supplies the body with all important nutrients.


The nutritional recommendations according to Kluthe also focus on other important aspects of nutrition such as fats, vitamins and much more. Here, however, the focus should be more precisely on protein intake. Many patients have to eat a low protein diet in order not to damage their kidneys.

This can, however, lead to the body’s own proteins being broken down for its needs. In order to prevent this, the protein intake must be as concentrated as possible and have a high biological value. This is achieved by a potato and egg mixture or a potato and wheat mixture.

The protein then covers the body’s requirements, but does not put additional strain on the kidneys. It should be taken in a meal. The doctor calculates the protein requirement and thus determines the exact amount to be taken.

This amount of potato and egg mixture is then distorted daily in a meal. In addition, of course, a good supply of vitamins, fats, calcium and iron must also be ensured. with 25 – 30 g total protein daily low sodium, not liquid balanced, no potassium restriction

  • 2 cups of coffee with 10 g sugar and 10 g condensed milk
  • 40 g bread roll
  • 25 g low protein bread (health food store)
  • 20 g butter
  • 30 g strawberry jam
  • 15 g honey
  • 100 ml apple juice
  • 10 g rusk
  • 5g butter or margarine
  • Fried potatoes with egg, endive salad, fruit ice cream
  • 300 g potatoes
  • 10 g bacon
  • 10 g oil
  • 20g onions
  • 30 g egg
  • Spices
  • 50 g endive salad
  • 10 g onions
  • 5g oil, spices
  • 60 g fruit ice cream
  • 2 cups of coffee, 10 g sugar, 10 g condensed milk
  • 1 slice of crispbread, 10 g butter or margarine
  • 15 g jam
  • 2 cups of tea, 10 g sugar
  • Vegetable soup with noodles20 g leek, carrots, celery10 g soup noodles, spices10 g vegetable oil
  • 50 g low protein bread15 g butter or margarine30 g processed cheese (60% fat in dry matter)50 g tomato
  • 150 g apple, freshIf there is a potassium restriction, foods rich in potassium must be left out and certain foods must be watered. Observe the prescribed drinking quantity when balancing liquids.
  • Nutritional values30 g protein80 g fat270 g carbohydratesEnergy 1970 kcalSodium 987mg (no table salt used for cooking)Potassium 2930 mgCalcium 380 mg,Phosphorus 742 mg