The bleeding that occurs while you take the inactive pills isn't the same as a regular period. Nor is the bleeding necessary for health. This is good news if you take birth control pills and want more control over your menstrual cycle, either for personal or medical reasons.
To prepare for the glucose tolerance diagnostic test: 1  Eat a balanced diet that contains at least 150 grams (g) 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.
The day before the test: your child may consume only the following low fiber foods and drinks: 1  plain white bread containing less than 1g fiber (limit 6) 2  plain white rice. 3  plain white potato, no skin.  baked or broiled chicken or 1  fish. water, non-flavored black coffee or 2  tea. only salt may be used to flavor  food.