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Old 06-15-2012, 09:23 AM   #1
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Glucose tolerance test

Supposedly if you're low-carbing, that will screw up the results of a glucose tolerance test. So - how many days of eating carbs will give more accurate results? I feel awful eating off-plan and want to make this as short as possible....
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Old 06-15-2012, 10:44 AM   #2
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When I had my GTT, my endo told me to eat high carb (for me) for THREE DAYS. She didn't specifiy a carb level, but I've since read that it should be at least 150g carbs a day, and 250g is preferable. I had at least that much because I ate 3 carb-intensive meals each day.

If it helps, I'm unusually carb sensitive, but I didn't experience any particular problems with the carbs and I got back on plan immediately after the test with no hunger or cravings involved.
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Old 06-15-2012, 10:45 AM   #3
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When I did this test, my doctor sent me out to go eat a stack of pancakes with regular syrup and come back two hours later for blood tests.

He wasn't concerned about my having been eating LC before the test.

(I did wish it wasn't stupid pancakes I had to eat - I don't even like them! But he was adamant )
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Old 06-15-2012, 05:07 PM   #4
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Thanks, guys.
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Old 06-15-2012, 05:13 PM   #5
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i never had one. i know i am diabetic & take 2 meds for it.

Dr Atkins suggested we take one BEFORE we begin Induction. In any case, I heard of a guy whose Dr ordered a GTT for him. The lab could never get a good reading, even after repeated testings. That was because he was a member of the KKK, and they have no tolerance for anything. Love & Profits: FLATFERENGHI
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Old 06-15-2012, 11:06 PM   #6
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Wouldn't either a huge stack of syrup-drenched pancakes, and/or four days of high carb eating cause a larger spike of the blood glucose than someone whose system is used to that way of eating? I don't mean long term, of course, just around the time of the test?

And if that has been your WOE for years and there is no reason to expect you to suddenly change, wouldn't a test of the results of how you are actually living your life be more useful than the equivalent of crazy-overloading a laboratory rat to safety test some substance?
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Old 06-16-2012, 01:33 AM   #7
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I don't pretend to understand the science behind this, but it's well known that low carbers would have skewed results on a GTT, and could risk being diagnosed as diabetic when they're not.

The problem happens when people don't think to mention their WOE to the doctor who would never think to remind them that they need carbs--since the SAD is so common. My endo and I had discussed my WOE previously, so she knew I ate very low carb, and she was very careful in her instructions about having carbs prior to the test.

After that, I read up on this topic, and those are standard instructions for anyone who typically eats less than 100g carbs a day.
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