2

votes

Dieting forces the brain to eat itself news article.

Answered on August 19, 2014
Created August 04, 2011 at 2:52 PM

http://www.telegraph.co.uk/science/science-news/8677200/Dieting-forces-brain-to-eat-itself-scientists-claim.html

http://www.msnbc.msn.com/id/43989918/ns/health-diet_and_nutrition/#.TjtOeGHK2nQ

So the study mentions that the body begins to release fatty acids. Could it be that those of us that get a jump in blood lipids as a result of going paleo are in effect under eating. Is under eating them worse than over eating? I stopped Crossfit in June and my blood lipids came down 100 points in TC. (Not that I'm against Crossfit. I can't wait to go back, but this time I'm eating as much as I can.)

669790861549f3c6d54d88a65296ed19

(452)

on August 05, 2011
at 07:19 PM

Gluconeagenisis is indeed what the process is called,however I'm not too sure if it's a good thing when your adrenals&thyroid are whacked.

34b560c8b9ce660d7839fb7e29d7be89

on August 05, 2011
at 09:33 AM

Stabby's got it right, your brain is composed of fats and uses glucose (which it can get from protein, through a process called gluconeogenisis I believe). I've read that there are essential fats, essential meaning something which your body cannot create but must ingest, but that there are no essential carbs. Your brain can operate on ketones, a byproduct of fat burning. That said I function better mentally on some carbs personally.

6371f0ae0c075ded1b8cd30aafd4bf16

on August 05, 2011
at 02:02 AM

Thanks. I was looking for more in depth reporting.

Be1dbd31e4a3fccd4394494aa5db256d

(17969)

on August 04, 2011
at 11:08 PM

Glucose for energy. And fat for structure. Yup yup.

Be1dbd31e4a3fccd4394494aa5db256d

(17969)

on August 04, 2011
at 11:08 PM

Brain needs fats and their metabolites for structure. It also needs some glucose no matter what.

E5c7f14800c5992831f5c70fa746dc5c

(12857)

on August 04, 2011
at 08:54 PM

Fatty acids can't cross the blood brain barrier. Ketones, a byproduct of fatty acid metabolism, can cross the BBB which acts as a survival mechanism in case of a famine known as ketosis. Some diseases can be treated by ketosis, but optimally we should eat enough carbs.

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3 Answers

4
531db50c958cf4d5605ee0c5ae8a57be

on August 04, 2011
at 04:53 PM

I think this commenter nailed it:

The problem is the low-fat diet. The brain contains a lot of fat. So if you don't get enough fat in your diet, that's why the brain "eats itself".

I don't think a jump in blood lipids comes from our brain fats getting burned. Won't this only happen after real fasting (not, say, a 20-hour intermittent fast) when the body is essentially starving?

2
Medium avatar

on August 05, 2011
at 12:04 AM

That's a pretty poorly written take on the phenomenon with a highly misleading and sensational title. A little bit better article is here: http://www.msnbc.msn.com/id/43989918/ns/health-diet_and_nutrition/

6371f0ae0c075ded1b8cd30aafd4bf16

on August 05, 2011
at 02:02 AM

Thanks. I was looking for more in depth reporting.

0
669790861549f3c6d54d88a65296ed19

(452)

on August 04, 2011
at 08:47 PM

I'm confused...there are (Paleo) sources that say the brain needs lots of fat,while there are other (Paleo) sources that mention that our brain uses up to 150gr.glucose daily. So are people divided into 2 types of brains? One person running mentally better on lots of fat,while the other might be better of with glucose?

E5c7f14800c5992831f5c70fa746dc5c

(12857)

on August 04, 2011
at 08:54 PM

Fatty acids can't cross the blood brain barrier. Ketones, a byproduct of fatty acid metabolism, can cross the BBB which acts as a survival mechanism in case of a famine known as ketosis. Some diseases can be treated by ketosis, but optimally we should eat enough carbs.

669790861549f3c6d54d88a65296ed19

(452)

on August 05, 2011
at 07:19 PM

Gluconeagenisis is indeed what the process is called,however I'm not too sure if it's a good thing when your adrenals&thyroid are whacked.

Be1dbd31e4a3fccd4394494aa5db256d

(17969)

on August 04, 2011
at 11:08 PM

Brain needs fats and their metabolites for structure. It also needs some glucose no matter what.

34b560c8b9ce660d7839fb7e29d7be89

on August 05, 2011
at 09:33 AM

Stabby's got it right, your brain is composed of fats and uses glucose (which it can get from protein, through a process called gluconeogenisis I believe). I've read that there are essential fats, essential meaning something which your body cannot create but must ingest, but that there are no essential carbs. Your brain can operate on ketones, a byproduct of fat burning. That said I function better mentally on some carbs personally.

Be1dbd31e4a3fccd4394494aa5db256d

(17969)

on August 04, 2011
at 11:08 PM

Glucose for energy. And fat for structure. Yup yup.

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