Last reviewed May 2026 · 1 min read
Is L-Glutamine vegan?
Also known as: Glutamine
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Source can be plant or animal.
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It depends — Like many amino acids, cheap L-Glutamine can be extracted from animal hair or feathers.
01 · The basics
What is L-Glutamine?
The most abundant amino acid in the body, heavily supplemented for gut health and muscle recovery.
02 · The source
Where it comes from
Like many amino acids, cheap L-Glutamine can be extracted from animal hair or feathers. However, fermented (vegan) L-Glutamine from corn or beets is widely available.
03 · Alternatives
Best vegan alternatives
Vegan L-Glutamine (fermented)
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Frequently asked
FAQ
How is vegan glutamine made?
It is usually made through a natural fermentation process using plant-based glucose (like corn) and a specific bacteria strain.
Is the glutamine in protein powder vegan?
If it's a whey protein powder, the glutamine is likely dairy-derived. In a vegan protein powder, the glutamine is plant-based.
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