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question about adding fast carbs after low carb

Answered on August 19, 2014
Created March 29, 2013 at 2:55 AM

So I recently did Chris Kresser's blood glucose testing experiment (http://www.marksdailyapple.com/does-eating-low-carb-cause-insulin-resistance/#axzz2OtHPvMP3) and was wondering if someone could help me with some questions about adding carbs back in after a time period of being low carb/primal.

I have been low carb the past few months and recently started eating a lot more fat and basically doing the Primal diet as outline in "primal body primal mind". I originally got into low carb via the GAPS diet which I sort of still stick to. Anyways, so I did Chris's experiment and got the following numbers: fasting glucose 75. 1 Hour after meal 110 average. 2 hours, 88 average. 3 hours, 75 average. I then did the fast carb test and ate a bowel of white rice with a little boiled chicken (Chris said to eat a cup so I think I overdid it). After eating the bowel of white rice, my 1 hour was 175, two hour 140, and 3 hour 115. Those are all pretty high but Chris says low carbers could subtract 10 from these numbers. So, would this mean I am carb sensitive? Basically, I am wondering what useful information I may get out of this test. After a few hours after the rice, I did develop a headache and soon after the rice I had a runny nose.

Lastly, when I say I have been low carb, I am assuming I have been. Mainly, my meals typically consist of meat cooked in a fat, some veggies cooked in fat or raw, and thats about it. I also typically eat avocados with meals.

D396b126240f584bc358e6e4fd84e9e3

(455)

on June 29, 2013
at 04:12 PM

NooMoahk is right. The insulin resistance from adopting a low carb diet is only temporary. Once you add carbs back, normal insulin sensitivity should return. Also, it's not just reduced insulin sensitivity, your body also significantly down-regulates insulin production so that first carb laden meal after being in ketosis for awhile is very likely to spike sky high.

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1 Answers

1
33266cca338ab54cee9a2aa160f5bdb6

on March 29, 2013
at 07:19 AM

Seems pretty normal to me. After doing keto/vlc for 1 year I had to go through an adaptation period when I added carbs. Eating just one apple caused a major blood sugar crash afterwards. After about 2 weeks my body was able to, seemingly, respond to carbohydrates properly and my numbers look pretty much like yours(I bought a glucose meter after those 2 weeks). As far as the symptoms after the starch it could be a bacterial endotoxin production since the starch may or may not be completely digested before it reaches your intestinal bacteria. Try some easily absorbable sugars and see if you get the same symptoms/numbers. You might also get different numbers after a week or two like I did but those numbers don't look bad to me. I am no glucose expert though!

D396b126240f584bc358e6e4fd84e9e3

(455)

on June 29, 2013
at 04:12 PM

NooMoahk is right. The insulin resistance from adopting a low carb diet is only temporary. Once you add carbs back, normal insulin sensitivity should return. Also, it's not just reduced insulin sensitivity, your body also significantly down-regulates insulin production so that first carb laden meal after being in ketosis for awhile is very likely to spike sky high.

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