Proof.Fit

L-Citrulline

11 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Heart health

Endothelial dilation +2.4%

Blood pressure -15 mmHg

Strong
947
Blood circulation

↑ NO blood flow

↓ BP / stiffness

Strong
862
Endurance

VO2/performance +5%

Blood pressure -9 mmHg

Moderate
409
Workout performance

Jump/agility + power

Reps/endurance + sprint

Moderate
276
Blood pressure

BP ↓, NO↑

Stress BP ↓, AIx↓

Moderate
238
Exercise recovery

Arginine/flow + performance

Soreness/recovery + reps

~+4.8% power

Moderate
193
Strength

NO/flow ↑; +54%

Strength/endurance mixed; +52.9%

BP ↓; −9.3%

Moderate
230
Vitality

Heart function +9 mmHg

Vascular function +20%

Lean mass +0.5 kg

Moderate
186
Energy & Fatigue

Power +5%; NO↑

Soreness −40%; reps +53%

BP↓; cycling efficiency↑

Weak
41
Muscle soreness

Soreness ↓; force maintained

+53% reps; soreness ↓

Soreness ↓

Weak
41
Nutrient uptake

AA availability +30-40%

Blood flow/FMD ↑

Weak
39