Proof.Fit

Citrulline

13 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Blood circulation

↑ circulation flow

↓ blood pressure

Strong
726
Heart health

BP↓ / FMD↑

Arterial stiffness↓ / mPAP↓

Moderate
590
Workout performance

Vasodilation +2.4%

Cycling power +11%

Reps/endurance up

Moderate
350
Endurance

Power/time fatigue +11%

+36% fatigue

Endurance/NO kinetics

Moderate
260
Strength

Strength: +11% power

Strength: +37% gain

Moderate
219
Healthy aging

Endothelial/arterial health

-1.2 m/s

Muscle/body composition

Moderate
197
Blood pressure

BP ↓ 9–15 mmHg

Stress BP ↓ ~15%

Central BP/stiffness ↓

Moderate
150
Nutrient uptake

↑Arg/NO uptake

+1840 citrulline

Gut perfusion/ injury

Moderate
904
Vitality

Heart function +20%

TB recovery +weight gain

Women lean mass +1.7kg

Weak
155
Sexual wellness

Semen quality, e‑NOS

Erectile function, sexual wellness

Weak
100
Energy & Fatigue

Endurance +36%

Reps +10–21%

Weak
63
Exercise recovery

Reps +53%, soreness −40%

Lactate −61%, fatigue ↓

Power ↑, lactate clearance

Weak
41
Muscle soreness

Less soreness

~40% soreness drop

Soreness reduced, performance up

Weak
41