The Claim
Intravenous lysine infusion in healthy children is associated with increased urinary orotic acid, reflecting urea cycle disruption due to impaired citrulline formation and mitochondrial dysfunction.
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.
When healthy children receive lysine through an IV, their urine shows higher levels of orotic acid, indicating a disruption in the urea cycle caused by reduced citrulline production and mitochondrial dysfunction.
See the scientific wording
Intravenous lysine infusion in healthy children is associated with increased urinary orotic acid, which may reflect urea cycle disruption due to impaired citrulline formation and mitochondrial dysfunction.
Lysine blocks the entry of ornithine into liver mitochondria and stops an enzyme that combines ornithine with another molecule to make citrulline. This causes a buildup of a toxic intermediate that gets redirected into making orotic acid instead of urea, leading to high levels of orotic acid in urine.
What the research says
1 studyStudy: Inhibitory effect of intravenous lysine infusion on urea cycle metabolism
When kids got a special IV drip of lysine, their urine showed more orotic acid — a sign their liver was struggling to clean up ammonia, like a clogged sink. The study proves the drip caused this stress.
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.