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  • Title: Diet-induced adaptation of intestinal fructose absorption in the rat.
    Author: Vrána A, Fábry P, Kazdová L.
    Journal: Physiol Bohemoslov; 1977; 26(3):225-34. PubMed ID: 141676.
    Abstract:
    The effect of dietary sucrose, fructose and glucose on the intestinal absorption of fructose and glucose was investigated in adult rats in vivo: Glucose absorption was not affected by the type of dietary carbohydrate, while the absorption of fructose was increased by the ingestion of the sucrose or fructose diet, as compared with the glucose diet. An almost maximal increase of fructose absorption was already observed when the quarter of the total dietary carbohydrates was replaced by fructose. Faecal fructose elimination declined during the feeding experiment. The enhanced intestinal absorption of the fructose load in rats fed the fructose diet was manifested by higher concentrations of fructose, but also of glucose and lactate in the hepatic portal blood.
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