出版社：Japan Association for the Integrated Study of Dietary Habits
摘要：Objective: To determine the effects of animal and plant protein intake and protein restriction on phosphorus excretion in healthy young women.Methods: Healthy young women were divided into four groups: normal (no dietary intervention), animal (animal protein intake), plant (plant protein intake), and low-protein (protein restriction) and subjected to a 3-day dietary intervention. Except in the normal group, vegetable intake was kept to a minimum to eliminate the effects of their constituent minerals. Based on the 3-day dietary records and 24-hour collected urine on day 3, the nutritional value, food group intake, and urinary components were evaluated.Results: There was no significant difference in the protein and phosphorus intake between the normal, animal, and plant groups. However, urinary phosphorus excretion was significantly lower in the plant and low-protein groups than that in the normal and animal groups; there was no significant difference between the plant and low-protein groups, with similar levels of phosphorus excretion. Magnesium intake and legume intake were significantly higher in the plant group compared to the other groups.Consideration & Conclusion: We showed that the plant protein diet reduced urinary phosphorus excretion to levels similar to that of the protein-restricted diet, while ensuring a protein intake comparable to that of the animal protein diet. We hypothesize that phytin and magnesium, which are related to the form of phosphorus in foods, are the factors that may explain these findings. Plant proteins may therefore be useful in the prevention of hyperphosphatemia.
