I was told to take collagen supplements like hydrolysed peptides on an empty stomach to avoid it binding with other proteins.
I also read this review on Amazon:
Have been taking L-Tryptophan for a while now, after experimenting with several different herbs and pharmaceuticals. Tryptophan is by far the most effective for my sleep maintenance issues, it puts me to sleep and keeps me asleep. Started with about 4g, for about a week, then 1g after that. Important to note, that if your body is fighting inflammation, try mixing the powder tryptophan to a tbsp of collagen in some warm water, this will help it pass the blood-brain barrier without competing with certain cytokines cause by inflammation, learned this trick from a biochemist names Steve Fowkes. If after taking tryptophan, you feel a litte "off" the next morning, most likely the culprit is your body producing inflammation cytokines, which compete with L-Tryptophan and the bi-product is toxins in your brain. I tried and boy does it work! Give it 15-20 min for the collagen protein bind with the tryptophan before drinking it. The mix will "cheat" and dodge the cytokines and go straight to your brain and knock you out! Your will wake up feeling refreshed the next day. I add a tablespoon of raw honey and tart cherry juice concentrate (for its anti-inflammatory properties). I sleep between 7 and 8 hours every night now, my back pain is gone as well! Try it, it works...
I'm trying to reconcile the two. I've read in other places about Steve Fowkes' recommendation. It doesn't say specifically which collagen peptide is the one its binding with. It also doesn't say whether or not it neutralizes the benefits of the collagen.
Ultimately the goal is quality sleep and increased serotonin, plus I don't want inflammation.
I have glycine by itself, I wonder if that's the one.
It has been implied here and in other places that I can't seem to find again via google at the moment.
EDIT: I looked up who Steve Fowkes is, he doesn't have a good rep on science based medicine, which casts doubt on anything he's saying here.
Edited by Nate-2004, 03 September 2016 - 10:39 PM.