Taking a 5-gram dose of L-arginine won’t help healthy young men cycle better or lower ammonia in their blood, even though it does raise levels of a few other related chemicals in their blood.

From: The effects of acute and chronic oral l-arginine supplementation on exercise-induced ammonia accumulation and exercise performance in healthy young men: A randomised, double-blind, cross-over, placebo-controlled trial

Strongly supported

Multiple high-quality studies back this claim.

60
Pro
0
Against
descriptive
1 study

Not medical advice. For informational purposes only. Always consult a healthcare professional.

What this claim means

Taking a 5-gram dose of L-arginine won’t help healthy young men cycle better or lower ammonia in their blood, even though it does raise levels of a few other related chemicals in their blood.

See the technical phrasing

Acute L-arginine supplementation at a dose of 5 grams does not reduce plasma ammonia concentrations or improve cycling performance in healthy young men, even though it increases plasma concentrations of arginine, ornithine, and citrulline.

What the research says

Supports

1 study

60

Study: The effects of acute and chronic oral l-arginine supplementation on exercise-induced ammonia accumulation and exercise performance in healthy young men: A randomised, double-blind, cross-over, placebo-controlled trial

This study provides evidence supporting the claim.

Contradicts

0 studies

0

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.