Analysis of Urine Composition Saturation and Dietary Intervention in Subjects Without Urinary Calculi

Ordinary phosphorus diet: Phosphorus content 1500mg High phosphorus diet: Phosphorus content 2500mg (inorganic phosphorus is added to the ordinary phosphorus diet) Low phosphorus diet: Phosphorus content 500mg (Protein content is achieved through chicken albumen and addition of low-phosphorus whey protein powder) The ratio of plant protein and animal protein is the same as the other two diets. In addition, calcium-magnesium tablets and potassium chloride salt are added to achieve the same calcium, magnesium and potassium content as the other two diets.) There are 2 recipes for each diet. Ensure that the energy, protein, fat, carbohydrate, calcium, magnesium, sodium, potassium, oxalic acid content, vegetable protein and animal protein ratio are basically the same: Energy: 2100kcal (30kcal/kg, standard body weight 70kg) Protein: 110g Fat: 55-60g Carbohydrate: 300g Calcium: 600-700mg Magnesium: 350-400mg Sodium: 4600mg Potassium: 2500mg