L-Arginine and L-Arginine for Exercise pump / performance
Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.
Compound or practice
L-Arginine
The direct nitric-oxide precursor that mostly loses to citrulline because the gut destroys it first.
Grade C3 graded outcomesrevised Jul 10, 2026
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
Evidence brief
L-Arginine for Exercise pump / performance
Evidence grade D — Poor oral absorption
Grade D1 graded outcomerevised Jul 10, 2026
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
Graded in both
Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.
| Outcome | L-Arginine | L-Arginine for Exercise pump / performance |
|---|---|---|
| Exercise pump / performance | Evidence grade DTrivial effectmixedPoor oral absorption | Evidence grade DTrivial effectmixedPoor oral absorption |
Graded only in L-Arginine
- Blood pressure Small effectEvidence grade C
- Erectile function Small effectEvidence grade C
Graded only in L-Arginine for Exercise pump / performance
None — every outcome it grades is graded in both.
Conditions
Only in L-Arginine
- Erectile dysfunction May improveEvidence grade C
Only in L-Arginine for Exercise pump / performance
None.
What each entry says about the other
- L-Arginine for Exercise pump / performance’s entry · Goes with: Read the full L-Arginine monograph
Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.