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2Corrective

Glutamine

Also sold as L-glutamine

Conditionally essential during severe illness, burns, or gut injury.

TrustedSupp Tier System™ · Tier 2Take until levels correct
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

Evidence strength

35/100Limited
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: clinical recovery in critical illness; routine gut-health claims are weak.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Clinical courses under supervision. Routine use in healthy people is unsupported.

Who it's actually for

Critical illness, burns, and some gut conditions — not general gut health.

Safe upper limit

Unverified
No formal limit; 5–30 g daily depending on indication
Well tolerated. Caution in liver disease, where nitrogen handling is impaired.
No source or citation attached yet.

Interactions to know about

Run your full list through the interaction check.

Practical notes

  • The 'leaky gut' marketing far outruns the evidence in healthy people.