3

votes

any other animals in a state of ketosis

Answered on August 19, 2014
Created November 27, 2012 at 4:02 PM

are meat eating animals in a ketosis state? i read somewere that they prefer fat than the muscles

B3173217a49b5b0116078775a17eb21d

(11488)

on November 27, 2012
at 11:50 PM

you can, but it takes a long while to replenish your glycogen stores ones depleted.

B3173217a49b5b0116078775a17eb21d

(11488)

on November 27, 2012
at 11:49 PM

well yes, ketosis is a starvation protection mechanism, it's likely to have a role in most (if not all) mammals.

2e1591c76896828077b930de5107f1af

on November 27, 2012
at 10:18 PM

can you perform high intensity training and be in ketosis?

2e1591c76896828077b930de5107f1af

on November 27, 2012
at 10:14 PM

im very interested in biology, and the evolution. im still in highschool but i would like to study it next year in a university. i was just curious lol

3ce6a0d24be025e2f2af534545bdd1d7

(26217)

on November 27, 2012
at 04:45 PM

interesting question -- I've got one for you, What is the purpose behind this question?

Frontpage book

Get FREE instant access to our Paleo For Beginners Guide & 15 FREE Recipes!

4 Answers

2
B3173217a49b5b0116078775a17eb21d

(11488)

on November 27, 2012
at 04:14 PM

http://paleohacks.com/questions/123355/do-carnivorous-animals-lions-cheetahs-etc-run-on-ketones-or#axzz2DQon7vdN

It's a good question - I think that we decided, from the little information available, that carnivorous cats have an upregulated gluconeogenesis pathway that would possibly meet their glucose needs without ketosis.

I quite like Paul Jaminet's analysis (in his Perfect Health Diet Book) in which he shows that, at the intestine wall, all mammals digest very similar macro ratios (independent of what they actually put in their mouths):

"It turns out that what differs among the animals is the composition of the digestive tract. Animals have evolved digestive tracts and livers to transform diverse food inputs into the uniform set of nutrients that all need. Herbivores have foregut organs such as rumens or hindgut chambers for fermenting carbohydrates, turning them into fats and volatile acids that can be used to manufacture fats. Carnivores have livers capable of turning protein into glucose and fat."

"When we look past the digestive tract at what nutrients are actually delivered to the body, all mammals obtain a remarkably similar set of nutrients. By calories, mammalian diets are always composed of a majority, typically 50-75%, of saturated and monounsaturated fats (including the short-chain fatty acids produced by fermentation of fiber); a mix of carbohydrates and protein, usually totaling around 25-40%; and a modest amount of polyunsaturated fat, typically less than 10%. "

http://perfecthealthdiet.com/author/admin/page/13/

1
3491e51730101b18724dc57c86601173

(8395)

on November 27, 2012
at 11:44 PM

Just thinking out loud here, but since most wild carnivorous animals must hunt for their next meal and can't be guaranteed when it will come, it seems to me they would have to rely on some form of ketosis to survive and not lose muscle mass in the interim.

B3173217a49b5b0116078775a17eb21d

(11488)

on November 27, 2012
at 11:49 PM

well yes, ketosis is a starvation protection mechanism, it's likely to have a role in most (if not all) mammals.

1
1edb06ded9ccf098a4517ca4a7a34ebc

on November 27, 2012
at 04:10 PM

I tried to figure this out a few months back, and unfortunately there's little information available. However, on some vet sites I did find out that cats have higly upregulated gluconeogenic pathways.

Intuitively, it would make sense that felines do not live in ketosis because they do a lot of high intensity sprints whenever they need to eat. Sprinting is by nature a glucose-intensive activity, sot they obviously have to produce enough glucose endogenously to meet those requirements, which I can only imagine are quite lofty, considering the amount of muscle mass felines cary.

2e1591c76896828077b930de5107f1af

on November 27, 2012
at 10:18 PM

can you perform high intensity training and be in ketosis?

B3173217a49b5b0116078775a17eb21d

(11488)

on November 27, 2012
at 11:50 PM

you can, but it takes a long while to replenish your glycogen stores ones depleted.

0
44894358c1cd33674c22850cc9368959

on November 28, 2012
at 08:08 AM

No, even polar bears are not in ketosis. In fact one study showed not even inuits were in ketosis as they had a much greater resistance to it and were more efficient at manufacturing glucose.

Answer Question


Get FREE instant access to our
Paleo For Beginners Guide & 15 FREE Recipes!