Performance
L-Arginine
Also known as: L-Arginine, AAKG, L-Arginine (Wound Healing), Arginine
B
Evidence
Direct nitric oxide precursor. Less effective orally than citrulline but still used.
Primary uses
- Pump
- Blood flow
- Nitric oxide
- Wound healing
- Collagen synthesis
- Surgery recovery
How it works
- Direct NO precursor
- Poor oral bioavailability
- Arginase breaks it down
Dosage
- Typical range
- 3-6g
- Timing
- Pre-workout
- With food
- Either
- Duration
- Acute effects
- Special populations
- Those who respond to arginine
Forms
- Powder
- Capsule
- Capsules
Safety
Common side effects
- GI upset
- Diarrhea
Contraindications
- Post heart attack
- Herpes (may reactivate)
Evidence notes
Supports healing via NO and collagen
Grade B: Some human trials support key claims; further confirmation needed.
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