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A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.
Direct side-by-side from the meta-analysis. Each row is an outcome where ≥2 of your selected supplements have pooled data. Best effect per row highlighted.
| Outcome | Arginine | L-Citrulline |
|---|---|---|
| Support heart health — Ldl Cholesterol − better · mg/dL | −16.4 weak · CI ∋ 0 | −1.1 weak · CI ∋ 0 |
| Support heart health — Systolic Blood Pressure − better · mmHg | −9.7best weak | −4.3 weak |
6grams
Between meals
L-Arginine powder or capsules
6g
Between meals
L-Citrulline powder (pure form)
30-60 minutes
During exercise
2-4 weeks
1-2 weeks
24-48 hours post-exercise
30-60 minutes
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