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L-Arginine
Full ranking Dose tool Products (717)
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Authoritative daily maximum: 8,000 mg
Median（Per day）625 mgP5 25 – P95 3,000
Products717
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=arginine.l2&lang=eng · Health Canada NNHPD monograph: 0.21-21 g L-arginine/day; not to exceed 8 g per single dose
Daily dose across products（mg/day）
Authoritative daily maximum 8,000
2.5 mglog scale · n=7176,000 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-Arginine | 500 mg | 90.0 |
| 1 | NutraChamps | L-Arginine | 500 mg | 90.0 |
| 1 | Spring Valley | L-Arginine 500 mg | 3,000 mg | 90.0 |
| 1 | Swanson | L-Arginine 500 mg | 1,000 mg | 90.0 |
| 5 | GNC | L-Arginine & L-Citrulline | 500 mg | 88.0 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.