BioStacks
Best Glutamine for Hydration
Top 1 products ranked
Last reviewed May 2026
Clinical dose: 5000–15000 mg
Why Glutamine for Hydration
Glutamine plays a supporting role in hydration. Conditionally essential amino acid and the primary fuel source for enterocytes and immune cells. Well studied for gut barrier integrity, immune support in athletes and stressed individuals, and exercise recovery.
What dose to look for
Clinical studies typically use 5000–15000 mg of glutamine. RCTs for gut barrier integrity and immune support use 5–15 g/day. Doses up to 30 g/day have been used in clinical settings. Products below this range may not deliver meaningful results.
What the research says
Glutamine has moderate clinical evidence for hydration benefits. Multiple trials for gut barrier integrity and immune support, especially in stressed populations Learn more
