truffles wrore
i have a second glucose tollerance test at the end of the month ... ive been doing the very low carb thing
For the results of your oral glucose tolerance test to be accurate, you will need to start preparing a few days in advance. The test is only accurate if you've been eating 150 or more grams of carbohydrate a day for several days running. If you've been following a low-carbohydrate eating plan, however, you'll have to go off it and eat at least 150 grams of carbs each day for four days.
truffles wrote
Why wont it give me an accurate reading
librarising said:borofergie can probably give you the scientific reason, but here's mine
Grazer wrote
Do we get beer after?
truffles wrote
if i stay on low carbs the reading will be worse,is that right ????
Well, the first thing is that LC eating rapidly induces insulin resistance. This is a completely and utterly normal physiological response to carbohydrate restriction. Carbohydrate restriction drops insulin levels. Low insulin levels activate hormone sensitive lipase. Fatty tissue breaks down and releases non esterified fatty acids. These are mostly taken up by muscle cells as fuel and automatically induce insulin resistance in those muscles. There are a couple of nice summaries by Brand Miller (from back in the days when she used her brain for thinking) here and here and Wolever has some grasp of the problem too.
This is patently logical as muscle runs well on lipids and so glucose can be left for tissues such as brain, which really need it. Neuronal tissue varies in its use of insulin to uptake glucose but doesn't accumulate lipid in the way muscle does, so physiological insulin resistance is not an issue for brain cells.
However, while muscles are in "refusal mode" for glucose the least input, from food or gluconeogenesis, will rapidly spike blood glucose out of all proportion. This is fine if you stick to LC in your eating. It also means that if you take an oral glucose tolerance test you will fail and be labelled diabetic. In fact, even a single high fat meal can do this, extending insulin resistance in to the next day.
while muscles are in "refusal mode" for glucose the least input, from food or gluconeogenesis, will rapidly spike blood glucose out of all proportion. This is fine if you stick to LC in your eating.
It also means that if you take an oral glucose tolerance test you will fail and be labelled diabetic.
truffles wrote
Geoff i am confused,
So now i am thinking maybe low carb is not the best thing i can do , what your saying is in the end , overall it is going to make my body less able to cope with a small amount of carbs in the future.
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