Does Fat interfere with Protein Digestion?

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Does Fat interfere with Protein Digestion? jay 01-31-2010
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Posted by jay on January 31, 2010, 5:17 pm


Does a meal that contains a high amount of fat (ie 80% fat, 10%
protein, 10% carbs) prevent stomach acid from breaking down proteins
(ie meat)? Does dairy (ie milk, yogurt) rely much on stomach acid for
it's digestion?

Also, if one eats pure fat (ie coconut oil or butter oil), does it
require stomach acid or bile for digestion?

Posted by Wildbilly on January 31, 2010, 8:15 pm


In article

> Does a meal that contains a high amount of fat (ie 80% fat, 10%
> protein, 10% carbs) prevent stomach acid from breaking down proteins
> (ie meat)? Does dairy (ie milk, yogurt) rely much on stomach acid for
> it's digestion?
Unless encapsulated in fat, stomach acid (HCL) will reduce proteins to
their component amino acids.
>
> Also, if one eats pure fat (ie coconut oil or butter oil), does it
> require stomach acid or bile for digestion?
Bile.
--
"Fascism should more properly be called corporatism because it is the
merger of state and corporate power." - Benito Mussolini.

http://news.yahoo.com/s/ap/20100119/ap_on_re_mi_ea/ml_israel_arresting_activists
http://www.democracynow.org/2010/1/19/headlines

Posted by Doug Freyburger on February 1, 2010, 11:52 am


jay wrote:
>
> Does a meal that contains a high amount of fat (ie 80% fat, 10%
> protein, 10% carbs) prevent stomach acid from breaking down proteins
> (ie meat)?

One of the principles of food combination diet styles is that digesting
starch and digesting protein are not compatible. Digesting protein
takes acid, but acid interferes with digesting starch. The good news is
that digesting fat does not interfere with either because it happens at
a different point in the digestion.

Digesting proteins or starches is something that the body adapts to.
Because I normally eat low carb, high fat, my digestion is tuned to
that. I can give myself mild indigestion by eating a high starch low
fat meal at a delicious Indian ethnic restaurant. Similarly folks who
regularly eat near vegitarian levels report indigestion from eating
steak. Switch the type of food you eat and if the dchange is large
enough it can trigger several days of indigestion. It's temporary.

> Does dairy (ie milk, yogurt) rely much on stomach acid for
> it's digestion?

I don't know. Cheese needs acid because it's go plenty of protein.

> Also, if one eats pure fat (ie coconut oil or butter oil), does it
> require stomach acid or bile for digestion?

Bile, and that's why there is not conflict between digesting high
protein and high fat foods. In the stomach acid is used to break down
the protein. In the duodenum bile is added. The bile neutralizes the
acid from the stomach (hmm, could this be the source of lots of burps?)
and it also emulsifies fats.

So the good news about a high fat diet is it exercises the gall bladder
by making it release bile after each meal. The bad news about a low fat
diet is it fails to excerise the gall bladder so gall stones tend to
form during a low fat diet. The confusing part is switching from a long
phase of low fat to a low carb diet starts exercising the gall bladder
so it can break lose existing gall stones. Prevention it's the same
thing as a cure. Unless the existing gall stones are small enough that
they pass without injury. Chuckle - Life long low carbing is good for
the gall bladder.

Posted by jay on February 2, 2010, 12:32 pm


> ... digesting starch and digesting protein are not compatible. =A0
> ... digesting fat does not interfere with either ...
>
> ...=A0Switch the type of food you eat and if the change is large
> enough it can trigger several days of indigestion.

Thanks Bill and Doug. I recently switched from a low-fat to low-carb
diet. I have tried twice before but couldn't stick to them due to dull
headaches, lethargy, sore nerves and high cholesterol levels (+400)
even though I am quite thin (BMI =3D 18.3). I hope it will be different
this time with lower protein and higher fat. The second morning, I had
a bad headache but it went away. About a week into and the lethargy
has gone done but I still feel it especially during exercise. The new
diet seems to have reduced heartburns but inflamed cuticles on sides
of finger nails. I am also hoping the low-carb diet will help my
trigger fingers which I experience upon waking. Did you experience an
increase in inflammation initially? Did it go away?

Posted by Wildbilly on February 2, 2010, 3:52 pm


In article

> > ... digesting starch and digesting protein are not compatible.  
> > ... digesting fat does not interfere with either ...
> >
> > ... Switch the type of food you eat and if the change is large
> > enough it can trigger several days of indigestion.
>
> Thanks Bill and Doug. I recently switched from a low-fat to low-carb
> diet. I have tried twice before but couldn't stick to them due to dull
> headaches, lethargy, sore nerves and high cholesterol levels (+400)
> even though I am quite thin (BMI = 18.3). I hope it will be different
> this time with lower protein and higher fat. The second morning, I had
> a bad headache but it went away. About a week into and the lethargy
> has gone done but I still feel it especially during exercise. The new
> diet seems to have reduced heartburns but inflamed cuticles on sides
> of finger nails. I am also hoping the low-carb diet will help my
> trigger fingers which I experience upon waking. Did you experience an
> increase in inflammation initially? Did it go away?

Be sure to eat plenty of veggies, and get your omega3 (fish oil,
purslane, ect). You may want to try an antiinflammatory tea as well
http://www.pfaf.org/database/search_use.php?K%5B%5D=antiinflammatory

What are you calling a low carb diet?
--
"Fascism should more properly be called corporatism because it is the
merger of state and corporate power." - Benito Mussolini.

http://news.yahoo.com/s/ap/20100119/ap_on_re_mi_ea/ml_israel_arresting_activists
http://www.democracynow.org/2010/1/19/headlines

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