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L-Glutamine
Full ranking Dose tool Products (948)
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Authoritative daily maximum: 9,000 mg
Median（Per day）1,000 mgP5 30 – P95 5,000
Products948
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=l.glutamine2&lang=eng · Health Canada NNHPD monograph: 5-9 g L-glutamine/day
Daily dose across products（mg/day）
Authoritative daily maximum 9,000
2.8 mglog scale · n=94815,000 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | Twinlab | L-Glutamine | 500 mg | 90.0 |
| 1 | XYMOGEN | L-Glutamine | 4,000 mg | 90.0 |
| 1 | Nature's Sunshine | L-Glutamine | 1,000 mg | 90.0 |
| 1 | MET-Rx | L-Glutamine 1000 | 4,000 mg | 90.0 |
| 1 | Spring Valley | L-Glutamine 500 mg | 4,000 mg | 90.0 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.