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Doctor insights on: Diet Before Glucose Tolerance Test

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Dr. Arthur Heller
2,585 doctors shared insights

Diet (Definition)

refers to all the physical matter humans (like all living creatures) must take in on a recurring basis; only partially for energy. Like all life on planet humans are open systems which keep tearing down their structure & require intake of atoms/molecules from which to rebuild their structure. Intestinal lining cells replaced ~every 3 days. CaPO4 in bones ~every 6 years, ...Read more


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A1c 4.9 while on low carb diet passed glucose tolerance test go to bed sugars at 100 or lower wake up 8 hrs later sugar 110 or so why & am i prediabet?

A1c 4.9 while on low carb diet passed glucose tolerance test go to bed sugars at 100 or lower wake up 8 hrs later sugar 110 or so why & am i prediabet?

We're all Prediabeti: As we grow older, we all tend to become Insulin resistant to some degree or other. Consequently, our sugars tend to rise, along with our insulin. Insulin is the hormone that causes sugar to enter our cells, where the excess is stored as fat. I recommend a low carb diet to everyone, and also recommend that just about everyone over 30 will benefit from metformin (an Insulin receptor sensitizer). ...Read more

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What is a glucose tolerance test?

What is a glucose tolerance test?

A check for diabetes: The GTT is a way for us to see who is at highest risk of diabetes. It is recommended that everyone be screened during their pregnancy, usually around 24-28 weeks. We will give you a bottle of a very sugary drink. You have five minutes to drink it all! Then a hour later we do a blood test to see how you metabolized the sugar. If you are high risk you may need further testing or treatment. ...Read more

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Do I need a glucose tolerance test?

Do I need a glucose tolerance test?

Yes: You actually need a glucose challenge test (gct) in pregnancy, which is a 1 hour screening test for gestational diabetes. If your screening test is abnormal then you need the glucose tolerance test (gtt), which is typically a 3 hour test. It is very important that all women are screened for gestational diabetes in their pregnancies. ...Read more

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How do I do a glucose tolerance test?

How do I do a glucose tolerance test?

GTT at home: Glucose tolerance testing is done less frequently now a days. You can do your own home version geta home glucose testing kit. Do the 1st blood glucose after an overnight fast, have a very hearty breakfast and do a bl glucose 1 hour and 2 hrs after the breakfast. Your fasting bl glucose should be below 200 if above 200 you do not need to do the test, you have diabetes and the result will not cha. ...Read more

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I got a glucose tolerance test, now what?

Screen for diabetes: A normal test can help you feel better that you don't have diabetes. An abnormal test can fall into two buckets - either borderline or frankly diabetic. The cutoffs for "abnormal" are different depending on why you had the test. This is a good thing to speak to the ordering physician about. ...Read more

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What can the do in a glucose tolerance test?

What can the do in a glucose tolerance test?

Drink glucose soluti: You drink a glucose solution and then have blood samples taken at various intervals to be analyzed for glucose level. ...Read more

Tolerance (Definition)

When one takes a drug, such as heroin or alcohol, repeatedly, 'tolerance' develops because more of the drug is needed to give the same effect on the body/brain; e.g. Liver enzymes r stimulated to metabolize the drug faster and faster. There may be a strong genetic predisposition to addiction, some studies suggesting that 1 of 10 people will become dependent on alcohol or some ...Read more


Blood Sugar (Definition)

The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. The body naturally tightly regulates blood glucose levels as a part of metabolic homeostasis. Glucose is the primary source of energy for the body's cells, and blood lipids (in the form of fats and oils) are primarily ...Read more