> I've been taking 10 grams per day of L-Glutamine for over a year. I just
> bought a new product at my local Vitamin store that claims to be better. (I
[quoted text clipped - 4 lines]
>
> Is anyone familiar with this?
>I would think that means
> 1) It is much cheaper to create
> 2) You have to digest it to break the peptide apart before absorption into
> the bloodstream.
Yes, cheaper. Enhanced bioavailability is BS.
However, to address point 2.....
It is false that peptides are not capable of crossing the epithelium lining
the digestive tract. They do so all the time. I would like to see an
explanation of anaphylactic shock from exposure to allergens such as peanut
or shellfish protein that did not entail absorption of intact peptides. The
contents of your digestive tract are outside your body; in three dimensional
terms, mammals are toroids. A drinking straw is a torus. There is an opening
at our top ends (mouth), a tube through the middle (digestive tract), and an
opening at the other end (anus). The digestive tract is surrounded by the
body, but it is not inside the body. Only substances that cross the
epithelial wall lining the digestive tract are inside our bodies. Numerous
peptides are absorbed. Consider the exorphins that trigger celiac disorder,
or those that modulate milk/dairy intolerance. Bromelain enzymes, with an
amino acid residue count in the 100's, are found intact in the blood, after
oral intake.
Lar