I'm currently studying the ketogenic diet, not because I have weight to lose ( I really don't), but because it interests me from a scientific point of view.
From reading some of the threads on this forum, I saw that a lot of people experience increased focus (less brain fog) while in ketosis. Now, most of what I could find regarding the nervous system and the ketogenic diet is related to its anti-convulsant effect for epilepsy. There are many hypothesis regarding this effect, but one of them has to do with a change in the balance between glutamate (the main excitatory neurotransmitter in the brain) and GABA (the main inhibitory neurotransmitter); the biosynthesis of the latter being increased at the expense of the former, therefore providing a calming, anti-convulsant effect [1].
This is where it has me confused, because I generally associate increased brain focus with caffeine, or medications such as ******** or Ritalin, which are all stimulants. So my question to those of you using the ketogenic diet is:
How do you experience this increased brain focus? Do you feel more calm on it, so that maybe your brain is not "going 100 miles an hour" and you can focus on a single thing?
Thank you.
[1] Marc Yudkoff, Yevgeny Daikhin, Ilana Nissim, and Itzhak Nissim; The Ketogenic Diet - Interactions With Brain Amino Acid Handling, From: Epilepsy and the Ketogenic Diet, Humana Press, 2004
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Thread: Ketogenic diet and brain focus
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03-05-2017, 04:45 PM #1
Ketogenic diet and brain focus
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03-06-2017, 06:46 AM #2Logs:
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03-06-2017, 09:27 AM #3
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03-07-2017, 01:41 AM #4
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03-09-2017, 11:21 AM #5
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Agree with what's already been posted... Definitely "calmer" on keto. I can't say that I have a rush of energy, but my energy and mood are at a constant balance throughout the day.
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03-09-2017, 12:39 PM #6
I've noticed a couple things. I tend to be able to stay less stressed, and another huge thing is my hunger is never a big focal point. I can think about food a lot since I do enjoy it, but when I am hungry, it is a very subtle hunger. I think not having hunger and cravings constantly in your face might be a big part of the lack of brain fog. On high carb diets, I used to get so hungry that I would not be able to really do anything until I ate, and I would get in a worse mood.
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03-09-2017, 07:36 PM #7
Thank you for the input everyone.
Some of the effects related to "less hunger" or "more stable energy throughout the day" may be related more to increased energy reserves under chronic ketosis. I'm not gonna go into details unless some of you are interested in hearing about molecular biology, but you can get more details by searching for the references below (probably not an easy read, though). Leptin (the satiety hormone) may also have a word to say about it, but I haven't found much about whether leptin levels are lower or higher in ketosis, so it may have more to do with leptin signaling in the brain (?). [Further search on leptin expression reveal that it is upregulated by insulin; I would imagine insulin secretion to be much lower in ketosis, which would most likely result in lower levels of leptin, which would increase hunger, so it seems that the mechanism by which hunger is reduced in ketosis would be more complicated than I imagined. (Ahima RS, Flier JS; Leptin, Annu Rev Physiol. 2000;62:413-37)]
I'm not sure what to think about sharper vision... I'm not disputing your claim, but I wouldn't have an explanation for it.
- Douglas R. Nordli, Jr. and Darryl C. De Vivo, Effects of the Ketogenic Diet on Cerebral Energy Metabolism, From: Epilepsy and the Ketogenic Diet, Humana Press, 2004
- Tim E. Cullingford, Molecular Regulation of Ketogenesis, From: Epilepsy and the Ketogenic Diet, Humana Press, 2004
- Devivo, D. C., Leckie, M. P., Ferrendelli, J. S. and McDougal, D. B. (1978), Chronic ketosis and cerebral metabolism, Ann Neurol., 3: 331–337
- Bough, K. (2008), Energy metabolism as part of the anticonvulsant mechanism of the ketogenic diet, Epilepsia, 49: 91–93
(if you are not familiar with the citation notation, you can just enter the citation in Google Scholar, and it will provide you a link to the text).Last edited by The_cannibal; 03-10-2017 at 03:50 PM.
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03-09-2017, 08:47 PM #8
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03-11-2017, 06:04 PM #9
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03-12-2017, 09:49 AM #10
Sorry, wrong thread. This one is about mental focus in ketosis.
Look at this thread: New to Keto? - Look Here First *Frequently Asked Questions*
and
Stupid Question thread
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03-12-2017, 03:09 PM #11
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03-18-2017, 01:26 PM #12
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03-26-2017, 04:28 PM #13
I have directly split tested meditation both on keto and non-keto diets after seeing a quote by Tim Ferriss about deep ketosis and meditation, and I can confirm it is GOAT for meditation.
I also go into keto states when not on any diet at all - I follow intermittent fasting, the other day I forgot to eat at 2pm which is when my window starts, and I notice increased calmness, not only that but lately I have noticed a lot of feeling of bliss and love towards others, even strangers. As soon as I eat this state goes away.
I am starting keto again tomorrow for 3 weeks to see how deep into this blissfulness I can get.
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