Re: Glucose Tolerance Test
I'm not a woman and I don't play one on TV...
I believe the point of the GTT is to see how well you metabolize glucose after a certain period of time (i.e. 1 or 3 hours). Therefore, they would want you to consume a certain amount of carb some period of time prior to the test.
A quick check of webmd.com found the following:
To prepare for the glucose tolerance diagnostic test:
- Eat a balanced diet that contains at least 150 to 200 grams of carbohydrate per day for 3 days before the test. Fruits, breads, cereals, grains, rice, crackers, and starchy vegetables such as potatoes, beans, and corn are good sources of carbohydrate.
- Do not eat, drink, smoke, or exercise strenuously for at least 8 hours before your first blood sample is taken.