The Claim
Ingestion of 4 grams of L-citrulline from microencapsulated watermelon rind increases plasma L-citrulline concentration by approximately 150% within 60 minutes in healthy young adults and concurrently elevates plasma L-arginine levels.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking 4 grams of L-citrulline from microencapsulated watermelon rind raises plasma L-citrulline levels by about 150% within one hour in healthy young adults and also increases plasma L-arginine levels.
See the scientific wording
Ingestion of 4 grams of L-citrulline from microencapsulated watermelon rind increases plasma L-citrulline concentration by approximately 150% within 60 minutes in healthy young adults, with a concurrent rise in plasma L-arginine levels, suggesting enhanced nitric oxide precursor availability.
When L-citrulline is swallowed, it enters the bloodstream and travels to the kidneys, where it is changed into L-arginine. This L-arginine then becomes available in the blood to be used by blood vessel cells to make nitric oxide, a molecule that helps blood vessels widen.
What the research says
1 studyEating a special powder made from watermelon rind gave people a big boost in two blood amino acids that help make nitric oxide — the molecule that helps blood vessels relax — within an hour.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.