In November 2019 researchers from the USA published their review of the potential mechanisms whereby several key characteristics of the typical Western diet may impact kidney disease incidence and progression. It is known that diets high in animal protein stop the glomerulus’ ability, the filtering unit of the kidney, to protect itself from injury. A high intake of animal protein, together with a low intake of fruits and vegetables, leads to a high amount of acid being produced which requires an increased production of ammonium to prevent acidosis. This higher workload of the kidney in order to maintain a normal bicarbonate level may further increase kidney disease progression. Reducing animal protein intake and egg yolk and increasing the consumption of fruits and vegetables and fibre may therefore prevent or delay end-stage renal disease. Further research is required to assess dietary patterns, eg a vegetarian diet, to prevent kidney disease and its progression.
Kramer H. Diet and Chronic Kidney Disease. Adv Nutr. 2019 Nov 1;10(Supplement_4):S367-S379.