Dietary nutrition in chronic renal failure is based on two principles. First, you need to reduce the amount of protein supplied with food to 20-40-60 g per day (depending on the degree of disease). Secondly, to ensure a sufficient calorie diet due to fats and carbohydrates, in order to reimburse the energy costs of the body.
If serious abnormalities in the electrolyte content of blood are found, restrict the intake of foods high in potassium (apricots, raisins, potatoes), phosphates (dairy products, fish), magnesium (cereals, legumes, bran, coriander, basil). The technology of processing products should be such that in the process of cooking, extractive nitrogenous substances are removed. For example, you can fry dishes only after pre-boiling, and canned foods, smoked products, pickles should be completely ruled out. This will also control the size of kidney stones, do you know what do kidney stones look like?