Out of 10 grams of glutamine, your stomach destroys about 9 1/2 grams. Of what's left, you may digest about 1/4 gram. Of that, your body may absorb a tenth of that.
Is that worth the cost?
You do the math.
Instead, use BCCA's, which turn into more glutamine than straight glutamine. (That's the way the body was meant to absorb it). Or better yet, use GEAR, which has BCAA's and Super plasma serum, which is 100% absorbable.