Proof.Fit

Arginine

19 benefits mapped to clinical evidence across supplements.

Benefit Evidence

Main Effects
Vascular health

NO vasodilation +33%

BP/perfusion changes

ADMA/cGMP shifts

Strong
11,502
Heart health

LDL↓, TG−16.6%

Heart injury↓, stays−1d

Vasodilation↑, BP↓

Strong
13,023
Tissue repair

Perfusion+blood flow

Infections/LOS ↓

Collagen+healing ↑

Strong
7,930
Blood circulation

NO vasodilation +blood flow

BP↓; flow↑

+135% arginine, flow↑

Strong
6,451
Nutrient uptake

AA uptake +35%

Arginine levels rise

Nitrogen balance improves

Strong
6,622
Skin repair

Perfusion+healing

Infections↓,stay↓

Strong
6,671
Immune support

Immune cells↑, infections↓

CRP↓, arginine↑

Strong
6,410
Inflammation

Infection↓ CRP↓

IL-6/TNF-α↓

SIRS/MOF↓

Strong
4,185
Metabolism

Metabolism: glucose↓, insulin↑

Metabolism: arginine↓/fat↓

Metabolism: fatty liver↓

Strong
2,831
Blood pressure

Vasodilation, −10 mmHg

Renal flow, −29%

Strong
2,998
Healthy aging

NO/endothelial +, BP −

Muscle/bone/aging +

GH, glucose, mortality

Strong
1,368
Sexual wellness

ED scores +5-12

Fertility/pregnancy +47%

Genital blood-flow ↑

Moderate
976
Exercise recovery

Amino acids ↑; signaling ↑

Recovery strength/endurance ↑

Infections/LOS ↓

Moderate
930
Fertility

Semen +47pp; pregnancy +19pp

Oocytes +3.2; fertilization higher

Birthweight +16%; litter +12-19%

Moderate
1,129
Workout performance

Endurance + vasodilation

Power/fatigue +14-35%

Moderate
528
Energy & Fatigue

Fatigue/Arginine ↓

Performance/Endurance ↑

Moderate
348
Endurance

Endurance capacity +14%

Exercise economy/strain reduced

Walking distance +32 m

Moderate
321
Bowel regularity

↑ urine flow/sodium

↓ renal blood flow

↓ bowel regularity

Moderate
421
Focus & concentration

Better focus, faster

Lower stress, steadier

Moderate
411