Author Topic: Fuel of the Digestive System  (Read 9114 times)

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Offline miles

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Fuel of the Digestive System
« on: January 02, 2011, 05:59:10 am »
What fuels can the digestive system run off of?
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Offline laterade

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Re: Fuel of the Digestive System
« Reply #1 on: January 02, 2011, 08:30:11 am »
You mean to increase acid production to break down food?
Maybe try raw vinegar...

Offline achillezzz

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Re: Fuel of the Digestive System
« Reply #2 on: January 02, 2011, 09:04:29 am »
Enzymess probiotics bacteria acid ermm glucose??

Offline Stancel

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Re: Fuel of the Digestive System
« Reply #3 on: January 02, 2011, 04:52:54 pm »
Fiber...

http://www.whfoods.com/genpage.php?tname=nutrient&dbid=59

Certain types of fiber are referred to as fermentable fibers because they are fermented by the "friendly" bacteria that live in the large intestine. The fermentation of dietary fiber in the large intestine produces a short-chain fatty acid called butyric acid, which serves as the primary fuel for the cells of the large intestine and helps maintain the health and integrity of the colon.

Two other short-chain fatty acids produced during fermentation, propionic and acetic acid are used as fuel by the cells of the liver and muscles. In addition, propionic acid may be responsible, at least in part, for the cholesterol-lowering properties of fiber.

In animal studies, propionic acid has been shown to inhibit HMG-CoA reductase, an enzyme involved in the production of cholesterol by the liver. By lowering the activity of this enzyme, blood cholesterol levels may be lowered.

In addition, fermentable fibers help maintain healthy populations of friendly bacteria. In addition to producing necessary short-chain fatty acids, these bacteria play an important role in the immune system by preventing pathogenic (disease-causing) bacteria from surviving in the intestinal tract.

As is the case with insoluble fiber, fibers that are not fermentable in the large intestine help maintain bowel regularity by increasing the bulk of the feces and decreasing the transit time of fecal matter through the intestines. Bowel regularity is associated with a decreased risk for colon cancer and hemorrhoids (when the hemorrhoids are related to straining and constipation).

Offline kurite

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Re: Fuel of the Digestive System
« Reply #4 on: January 02, 2011, 06:02:27 pm »
I think hes asking if its like the brain and requires glucose or are like muscles and will use glucose if available but will otherwise use ketones.
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Offline miles

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Re: Fuel of the Digestive System
« Reply #5 on: January 02, 2011, 07:07:48 pm »
I think hes asking if its like the brain and requires glucose or are like muscles and will use glucose if available but will otherwise use ketones.

Yes, that's basically what I was asking, but I asked more generally because I don't even know enough about it to ask even that specifically.
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Offline miles

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Re: Fuel of the Digestive System
« Reply #6 on: January 03, 2011, 10:52:32 pm »
?
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Offline achillezzz

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Re: Fuel of the Digestive System
« Reply #7 on: January 03, 2011, 11:47:04 pm »
good question rofl

Offline ys

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Re: Fuel of the Digestive System
« Reply #8 on: January 04, 2011, 12:00:49 am »
first, fiber is not an essential nutrient for human what-so-ever.  human body can function perfectly fine without any fiber in the diet.

and second, this website you are referencing, it follows mainstream dogma of mostly low-fat, cooked grains, fruits and vegetables, salads.  

Offline laterade

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Re: Fuel of the Digestive System
« Reply #9 on: January 04, 2011, 12:15:28 am »
Tons of bacteria might help.
The stomach contains a huge amount of glands to fat and protein are most likely essential.

Do you have any specific issues or are you just curious?

Offline miles

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Re: Fuel of the Digestive System
« Reply #10 on: January 04, 2011, 12:36:09 am »
??? Digestion takes a lot of energy, at least from everything I've heard. I was just wondering what fuels it can use for that energy. I seem to remember hearing on a nature show, that a crocodile's digestive system worked anaerobically.
« Last Edit: January 04, 2011, 12:47:24 am by miles »
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Offline ForTheHunt

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Re: Fuel of the Digestive System
« Reply #11 on: January 04, 2011, 01:04:41 am »
The digestive system is just a bunch of muscle contractions so it's just glucose.
Take everyones advice with a grain of salt. Try things out for your self and then make up your mind.

Offline Hannibal

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Re: Fuel of the Digestive System
« Reply #12 on: January 04, 2011, 01:19:55 am »
human body can function perfectly fine without any fiber in the diet.
Human body can function without any fiber - that's true.
But not perfectly.
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Offline goodsamaritan

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Re: Fuel of the Digestive System
« Reply #13 on: January 04, 2011, 01:44:17 am »
Fiber...

http://www.whfoods.com/genpage.php?tname=nutrient&dbid=59

Certain types of fiber are referred to as fermentable fibers because they are fermented by the "friendly" bacteria that live in the large intestine. The fermentation of dietary fiber in the large intestine produces a short-chain fatty acid called butyric acid, which serves as the primary fuel for the cells of the large intestine and helps maintain the health and integrity of the colon.

Two other short-chain fatty acids produced during fermentation, propionic and acetic acid are used as fuel by the cells of the liver and muscles. In addition, propionic acid may be responsible, at least in part, for the cholesterol-lowering properties of fiber.

In animal studies, propionic acid has been shown to inhibit HMG-CoA reductase, an enzyme involved in the production of cholesterol by the liver. By lowering the activity of this enzyme, blood cholesterol levels may be lowered.

In addition, fermentable fibers help maintain healthy populations of friendly bacteria. In addition to producing necessary short-chain fatty acids, these bacteria play an important role in the immune system by preventing pathogenic (disease-causing) bacteria from surviving in the intestinal tract.

As is the case with insoluble fiber, fibers that are not fermentable in the large intestine help maintain bowel regularity by increasing the bulk of the feces and decreasing the transit time of fecal matter through the intestines. Bowel regularity is associated with a decreased risk for colon cancer and hemorrhoids (when the hemorrhoids are related to straining and constipation).

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Offline Hannibal

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Re: Fuel of the Digestive System
« Reply #14 on: January 04, 2011, 02:44:15 am »
Do you blame vultures for the carcass they eat?
Livin' off the raw grass fat of the land

Offline King Salmon

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Re: Fuel of the Digestive System
« Reply #15 on: January 04, 2011, 03:11:00 am »
... and very true
Similar information can be found here - http://www.bodyrecomposition.com/nutrition/fiber-its-natures-broom.html

This article mentions that fiber decreases nutrient and mineral absorbtion.I wonder how many ZCers would be interested in that?
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Offline Hannibal

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Re: Fuel of the Digestive System
« Reply #16 on: January 04, 2011, 03:27:19 am »
This article mentions that fiber decreases nutrient and mineral absorbtion.
But only a little bit.
"When fiber intake is increased from foods (as opposed to dietary supplements), there is generally an increase in mineral intake in the first place which should help to offset any issues."
Do you blame vultures for the carcass they eat?
Livin' off the raw grass fat of the land

 

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