0

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been eating low carb, do i need to "carb up" for a fasting insulin/bs test or

Answered on August 19, 2014
Created September 17, 2012 at 4:29 PM

is that just for a OGTT which i am not taking?

thanks!

3ce6a0d24be025e2f2af534545bdd1d7

(26217)

on September 17, 2012
at 05:32 PM

@MathGirl72 -- No, it shows your current ability to process glucose. Which is important to know. The real question is why take the OGTT in the first place? If you are doing it for a specific purpose that might change my over-arching philosophy. I see people changing their diets in the 2-3 weeks leading up to a cholesterol test so they can get better numbers.... IMO that is counter productive. You should know what your real numbers are, not what you can get to if you made changes to your diet

3ce6a0d24be025e2f2af534545bdd1d7

(26217)

on September 17, 2012
at 05:29 PM

if you normally eat LC, continue to eat LC. The test results will be whatever they are. It is more important to know how to interpret the results. Yes, you won't have the carbohydrate enzymes circulating throughout your body. So your doctor should augment their interpretation of the results accordingly.

61844af1187e745e09bb394cbd28cf23

(11058)

on September 17, 2012
at 05:26 PM

Carbing up with 150 g of carbs in the few weeks prior to an OGTT is not "fooling" the test. If you are normally low-carb, suddenly ingesting the massive amount of glucose in those concoctions can cause results that aren't indicative of your actual ability to process glucose.

293ba4c95d190bc616b27d85b10d705a

(661)

on September 17, 2012
at 05:15 PM

okay sorry, but i normally eat LC, would you consider this "fooling" the test? or is eating like a normal person with more carbs "fooling" the test? thanks

61844af1187e745e09bb394cbd28cf23

(11058)

on September 17, 2012
at 04:44 PM

It is horrible. The last time I drank their glucose concoction I threw it up. The next time, they had me drink a very under-diluted Country Time lemonade drink that was disgustingly sweet. This was all pre-Paleo. I will never subject myself to that again.

293ba4c95d190bc616b27d85b10d705a

(661)

on September 17, 2012
at 04:35 PM

i refuse to take the OGTT too. It sounds like a brutal test.

61844af1187e745e09bb394cbd28cf23

(11058)

on September 17, 2012
at 04:31 PM

Only the OGTT, which I refuse. My last two tests were done without changing my <50 grams of carbs per day.

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2 Answers

2
6120c989fd5b69f42a0834b69b87955b

(24553)

on September 17, 2012
at 07:01 PM

If it is to determine Gestational Diabetes, I've been advised by multiple midwives to make sure I am eating at least 100g of carbohydrate per day in the week leading up to it.

The parameters that your healthcare provider has been given to interpret the test are based on someone eating the typical carbohydrate based diet. Being in ketosis will screw with the results.

Going in there VLC, you are in a state of functional insulin resistance, and the test can't differentiate between that and pathological insulin resistance and glucose intolerance.

Eating a solid meal of mixed macros is important the night before the test as well. I know someone who bombed the test (but it turned out did not have GD) because she went out for hot chocolate the night before the fast and forgot to have a big dinner.

2
3ce6a0d24be025e2f2af534545bdd1d7

(26217)

on September 17, 2012
at 04:50 PM

IMO, you should eat the same way before a blood test (except that many you have to fast for 12 hours) as you normally do (including the OGTT if you want to take that test). There's no need to find ways to "fool" the test. You want to know what your real results are so you can be better informed, otherwise why even take the test in the first place?

The important thing is to have a doctor who will help you interpret the results as part of your general health. Not a prescriptive (you had X score so I am going to give you Y medicine).

3ce6a0d24be025e2f2af534545bdd1d7

(26217)

on September 17, 2012
at 05:32 PM

@MathGirl72 -- No, it shows your current ability to process glucose. Which is important to know. The real question is why take the OGTT in the first place? If you are doing it for a specific purpose that might change my over-arching philosophy. I see people changing their diets in the 2-3 weeks leading up to a cholesterol test so they can get better numbers.... IMO that is counter productive. You should know what your real numbers are, not what you can get to if you made changes to your diet

293ba4c95d190bc616b27d85b10d705a

(661)

on September 17, 2012
at 05:15 PM

okay sorry, but i normally eat LC, would you consider this "fooling" the test? or is eating like a normal person with more carbs "fooling" the test? thanks

3ce6a0d24be025e2f2af534545bdd1d7

(26217)

on September 17, 2012
at 05:29 PM

if you normally eat LC, continue to eat LC. The test results will be whatever they are. It is more important to know how to interpret the results. Yes, you won't have the carbohydrate enzymes circulating throughout your body. So your doctor should augment their interpretation of the results accordingly.

61844af1187e745e09bb394cbd28cf23

(11058)

on September 17, 2012
at 05:26 PM

Carbing up with 150 g of carbs in the few weeks prior to an OGTT is not "fooling" the test. If you are normally low-carb, suddenly ingesting the massive amount of glucose in those concoctions can cause results that aren't indicative of your actual ability to process glucose.

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