Abstract
Two studies made with eight women subjects on the effect of orange juice and grape juice on the urinary excretion of citric acid are reported. The effect on urinary pH, titratable acidity, and excretion of total organic acids was also observed. The following results were obtained when 1000 cc. orange juice or 1000 cc. grape juice were added to a basal diet. The organic acids representing products of metabolism may arise as a result of the alkalizing effect of the fruit juices.

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