Health Information
D-Xylose Absorption Test
Test Overview
The D-xylose absorption test measures the level of D-xylose, a type of sugar, in a blood or urine sample. This test is done to help diagnose problems that prevent the Reference small intestine Opens New Window from absorbing nutrients in food.
D-xylose is normally easily absorbed by the Reference intestines Opens New Window. When problems with absorption occur, D-xylose is not absorbed by the intestines, and its level in blood and urine is low.
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