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Old 05-17-2014, 07:36 AM   #1
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More on insulin spikes/increased carbs

I have been pondering the question of disrupting ketosis with a high carb meal etc. and had some surprising results. No apparent disruption of ketones after a higher carb meal.

I have read that if a n.k. person is to have a glucose tolerance test, to get an accurate result, they need to eat a higher carb woe for 3 days prior to the test. The reason being, ketosis has the effect of down regulating insulin due to the lack of need. It takes about 3 days to up-regulate.

This must be why keto adapted folks do not experience loss of ketones. Maybe with a high carb food, b.g. is elevated but insulin is not. What do you think?
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Old 05-17-2014, 12:14 PM   #2
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It makes sense to me that a single meal would not make a difference.

There is also the fact that we all have a different carb level that keeps us in ketosis, too. That will also vary with activity level. So that would add to it.
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Old 05-18-2014, 06:01 AM   #3
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Cathy - the great mystery - finding that formula to either spike your carbs or NOT spike your carbs. Starting to feel like the holy grail - granted, it varies by person, but it's fascinating.

3 days is interesting - once the insulin isn't down regulated, is this the point where one really isn't in nutritional ketosis (meaning a ketone "steady state" rather than a ketone spot check - which, I'm finding is can vary quite a bit for me). I wonder if after 3 days what the process is to get back into full nutritional ketosis (ketone levels + appetite + energy + resilience/adaptability).

Hopefully, it's a quick skip back...

Look forward to more discussion on this topic!
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Old 05-18-2014, 06:11 AM   #4
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It seems that the recommended 3 days would be a time that would ensure that ketosis is not playing a role in that test. It might actually be a shorter period of time but clearly not 1 meal or even 1 evening. Which makes me wonder about the validity of the whole 'carb night' book and hypothesis. I guess it is entirely possible that blood glucose would rise but insulin is not kicking in......????

On the other hand, if it means that additional carbs, or protein in a single meal here and there can be part of n.k., that may be very good news. I have always been reluctant to do anything that might take me out of ketosis - even briefly. This is because I have been very carb sensitive and I like being in ketosis.

There was a day that something like beet would make me ill. That doesn't seem to be the case any longer although I have not tested that particular food. In fact, I have not really tested much aside from the Easter brunch Ceasars and sweet potato. On both occasions, I did not exceed 80g over the day. But that is a heck of a lot more carbs than I normally consume (under 20g for the most part). Four.5 years of being hyper-vigilant seems to have made some positive changes.

Last edited by clackley; 05-18-2014 at 06:15 AM..
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Old 05-18-2014, 07:03 AM   #5
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Cathy - yes, it seems like you've paid your dues and now have a bit of flexibility and you've earned that resilience.
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