L-Glutamine powder should be a clean, white colour with no yellow or slightly brown powder. Some cheaper glutamines are sourced from wheat. Wheat is hard to digest and is ONLY 30% glutamine. Some L-Glutamine is sourced from shellfish where there may be measurable amounts of harmful heavy metals. L-Glutamine comes from a fermentation process of beets. Beets are fermented with probiotic cultures, which means a 100% vegan fermented L-Glutamine. North Coast Naturals Fermented L-Glutamine is absolutely pure glutamine from Ajinomoto - the only glutamine manufacturer in the world with a master drug file number for L-Glutamine.
- 100% pure from Natural Sources
- Non-GMO
- VEGAN
- Unflavoured
- Zero fillers, zero sugar and zero impurities
- No shellfish or other animal products
- Fermented with probiotic culture
- 100% pure pharmaceutical grade L-Glutamine manufactured by Ajinomoto of Japan
- Ajinomoto is the only manufacturer in the world with a master drug file number for L-Glutamine


Valeria: a few months ago
I’m taking this for my gut health, aswell as the consequence of it, which is psoriasis.
Important tips: drink it on the empty stomach with water. Not in smoothies, nor in hot drinks. The glutamine has to coat the intestine to heal it. Mixed with other nitriments, it more difficult for the product to adhere.
Gabrielle: more than a year ago
I'm taking this as part of a protocol to heal my leaky gut along with some other supplements. I haven't tried it in plain water but I mix it into my smoothies and don't notice it changing the flavour or consistency at all, which is great! And it is a great value for the price compared to other brand names.