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Clinically dosed — the label discloses at least as much citrulline per serving as clinical trials used. The black tick on the bar marks the trial dose.
Under clinical dose — the label is honest about the amount, but it's less than the studies used, so the studied effect may not apply.
Dose not disclosed — the label doesn't let you verify the amount at all (usually a "proprietary blend" that only prints the mixture's total weight).
Data verified 2026-07-18 · Scored against: Barkhidarian et al. 2019, Avicenna J Phytomed meta-analysis: significant diastolic-BP reduction only at >=6 g/day L-citrulline; systolic improved across 3-9 g/day. Vascular/blood-flow threshold. Caveats on Method page: dedicated ED trial (Cormio 2011) used 1.5 g/day; citrulline malate is a 2:1 salt whose weight overstates L-citrulline.. How scoring works →
Check price → (affiliate link — never affects a score)
Educational information from the product's own label data, not medical advice. Some outbound links may earn us a commission — it never changes a product's dose score. Label data can lag reformulations; the linked NIH DSLD entry is the label we scored.
You can't tell from the label. ON Optimum Nutrition Essential Amin.O. Energy Chewables Orange Pineapple does not disclose a verifiable citrulline amount per serving, so there's no way to confirm it reaches the 6 g/day clinical dose.
Yes. The citrulline is inside a proprietary blend, so the label shows only the blend's total weight — not how much citrulline you actually get.
Clinically dosed, no-blend options include: NutraBio Pre Raw Unflavored (6 g); MTS Nutrition Clash Fully Loaded Pre-Workout (6 g); LMNITRIX Harambe Blood Blue Slush (6 g). All disclose at least 6 g per serving on the label.
Every clinically dosed, no-blend product in this category — free, plus score-change alerts.