Dosage · Supplement
L-Arginine: dosage and how to take it
3–6 g; citrulline usually preferable.
- Overall grade
- Grade C
- Last revised
- 0
- graded outcomes
- 0
- references listed
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.
The evidence in words
How much to take
3–6 g if used; citrulline is usually preferable for the same goals.
Timing & separation
There are no strict timing conflicts on record for L-Arginine; consistency matters more than the exact hour for most goals.
Why the dose is what it is
It is a substrate for nitric-oxide synthase, promoting vasodilation — but first-pass gut and liver metabolism blunts oral absorption badly.
Bottom line
Outclassed by citrulline for pumps and endurance. Modest for blood pressure and erectile function; the gut is the bottleneck.
How it is used
As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.
- Standard
- 3–6 g; citrulline usually preferable.
Goes with
- L-ArginineFull L-Arginine monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- L-Arginine for Blood pressureEvidence grade C — Modest reductionEvidence grade C
- L-Citrulline: dosage and how to take it6–8 g L-citrulline (or 8 g malate), ~60 min prior.Evidence grade B
- Beetroot / Dietary Nitrate: dosage and how to take it6–13 mmol nitrate, 2–3 h prior.Evidence grade B
- L-Arginine for Erectile dysfunctionEvidence grade C — High-dose or combinedEvidence grade C
Sources
This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.
Last revised . A grade is this entry's reading of the evidence, not medical advice.