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In the case of animal protein (meat, eggs, dairy) provide important essential amino acids in IRC where metabolisme, as previously mentioned, is enhanced by several factors (metabolic acidosis, hyperparathyroidism, uremic state, hormonal disturbances , etc.) yet are attributed as a major adverse situation “renal work” (for afferent arteriole vacillation with increased filtration) to produce as much nitrogen products which aggravate the uremic symptoms.

With regard to vegetable proteins (legumes) would seem to offset the damage of the animal protein they do not affect blood flow to gloomily filtration, reduced proteins, urinary albumin and cretonne increased serum protein levels, contribute less methionine preventing or reducing homo cysteine also play a leading role in diet therapy of lipid abnormalities (most prevalent in this patient) and are foods low in sodium. Finally, and not least for our times, are inexpensive. When discussing the disadvantages of these proteins could mention:

a) A lower protein digestibility (PDCAAS) whereas this index as the conjunction between protein digestibility and amino acid pattern has (score) in relation to the requirements.

B) A high or very high in potassium and phosphorus: chemical composition tables available report high contents of these minerals to be limited as renal disease progresses. Anyway there is too much variability in the information on mineral composition of these foods (especially soy) which shows that the variety and growing conditions play an important role. With regard to potassium, we also know that there soaking and cooking procedures that work on reducing risk.

c) Gastrointestinal disorders: They are a major disadvantage when it comes to increase the supply of vegetables, especially in patients with uremic symptoms.

d) Finally it is important to note that vegetables are not part of the eating habits of many patients, fewer stages of anorexia.

As we see, both animal proteins and vegetable have their pros and cons.

Room for debate, but for now it is clear that while the excess of animal protein is harmful, are an irreplaceable contribution, while those of plant origin only contribution but are insufficient to be included as an add significant.