2. Animal protein
People with kidney problems should stay away from high protein diets. The same also goes for dairy products as milk and cheese contain high levels of protein. Protein can be highly acidifying, and that’s regardless of whether it comes from a cow, a sheep or a goat. As a result, the consumption of milk and other dairy products increases calcium secretion in the urine. This puts a tremendous amount of stress on your kidneys and “ages” your bones by depleting them of calcium.