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  • Title: Effect of dietary intake on urinary oxalate excretion in calcium oxalate stone formers in their forties.
    Author: Naya Y, Ito H, Masai M, Yamaguchi K.
    Journal: Eur Urol; 2000 Feb; 37(2):140-4. PubMed ID: 10705190.
    Abstract:
    PURPOSE: To examine the influence of dietary intake on urinary oxalate excretion in calcium oxalate stone formers in their forties. PATIENTS AND METHODS: Dietary intake was recorded by using the dietary-record method in 58 idiopathic stone formers in their forties. The patients collected their urine for 24 h at home and their urinary oxalate excretion was measured. The relationship between the dietary intake of various nutrients and urinary oxalate excretion was examined by mono- and multivariate analysis. RESULTS: The intake of animal fat was correlated with urinary oxalate excretion by monovariate analysis, but that of total protein, animal protein, calcium and carbohydrate were not. By multivariate analysis, the intake of animal fat was correlated with urinary oxalate excretion and the intake of calcium was inversely correlated with urinary oxalate excretion. CONCLUSION: The intake of animal fat was positively and the intake of calcium was negatively correlated with the urinary oxalate excretion in stone formers in their forties. It was shown that animal fat plays an important role in urinary oxalate excretion.
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