I am looking for scientific informations about which part of digested molecule classes (proteins, carbohydrates, lipids) passes through the intestinal barrier without being (completely) degraded and would be glad for any hint or/and link.

I don't clearly understand what you mean by complete degradation.
Carbohydrates get degraded to moosaccharides or disaccharides, prteins to peptides and amino acids, lipids, to fatty acids, and then get transported as very minute chylomicrons... they usually get degraded to their simpler components... monomers(they are all polymers)... they usually don't get degraded less than this.this si how they pass into the intestine.

That's what has been believed thirty years ago. But since it has been discovered that many molecules pass through the intestinal barrier without being (completely) disassembled.

Among carbohydrates, proteins and lipids, your answer depends on your definition of complete degradation. There are carbohydrates that pass through even as pentasaccharides, but most polysaccharides are usually broken down to molecules of usually a max of 6 to 7 monomers only, much more commonly to mono and di saccharides.similarly with proteins and lipids.maybe your looking for the percentage of molecules that don't get completely degraded, well in that case, I guess it depends on individual systems, the amount of enzymes secreted from person to person, etc.

Here is a resource to read up on a type of polysaccharides know as glyconutrients.

Hi zach, please check the dates of the posts you reply to, this one is nearly 3 years old! :D

Hahhahhhahahha



If someone still needs the recent posts can help/ ;)

Well the primary entities fro example monosacharides and monopeptides and triglycerides passs happliy without being degraded further.

Well another thing fibre content also passes away withouir being degraded and it washes out filthy content as in wastes from intestines , gut and from the body