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Message: <blockquote data-quote="Indy51" data-source="post: 600931" data-attributes="member: 48386">That's very unusual. Normally the 3 month test is an HbA1c test.I've read that for an OGTT you should eat at least 150g of carbohydrates for 3 days prior to the test to get an accurate response. The explanation for why is available on Dr Eades blog: <a href="http://www.proteinpower.com/drmike/uncategorized/low-carb-caveat/" target="_blank">http://www.proteinpower.com/drmike/uncategorized/low-carb-caveat/</a>"Following a low-carb diet makes one a little glucose intolerant, which is the reason that the instructions for a glucose tolerance test always include the admonition to eat plenty of carbs in the week before the test. Why? Because all the macronutrients–glucose, fat and protein–are broken down by enzymes during the metabolic process. And all the enzymes necessary for the metabolism of the various macronutrients are made on demand but not immediately. If you are on a high carbohydrate diet, then you will have plenty of enzymes on hand to deal with the carbohydrates you consume. If you switch to a low-carbohydrate diet, it takes a while to manufacture the enzymes in the quantities needed to deal with the extra fat and protein that your metabolic system hadn’t been exposed to. This deficiency of protein/fat metabolizing enzymes is the reason people starting a low-carb diet become so easily fatigued–they’ve got plenty of enzymes on hand to break down carbs, they just don’t have the carbs to metabolize. Once they produce the enzymes necessary to deal with the load of protein and fat, which takes a few days, they become low-carb adapted and no longer feel fatigued."</blockquote>

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