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To make the results all the same for different people. If you have eaten food prior to the test, the results will be different

- actually fasting before the test might avoid any false result. because when we are fasting the glucose supply will be cut and so, this will not interfere with the glucose loaded during the experiment. because what we want to observe is how the body will react with that particular amount of glucose intake in the given time.

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14y ago
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Q: Why are patients fasted before Oral Glucose Tolerance Test?
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