Ornithine and fatigue
What 2 graded rows on ornithine agree on for fatigue, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Ornithine page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Ornithine page, with its PubMed record.
Your question
Ornithine and fatigue
2 rows · 28 peopleThey agree: both rows found an improvement.
- DGrade D× 2
- Rows
- 2
- Trials
- 2
- People
- 28
What the rows share
From the rowsThe best-graded row, grade D, is a crossover trial of 17 people (2008) and found an improvement.
The rows run from 11 to 17 people, published from 2008 to 2013: 2 single studies.
The rows
2 improved- DGrade DFeelings of fatigue and sprint performance during prolonged cycling · Improved
Crossover RCT · n 17 · 2008 · Healthy volunteers
2,000 mg/day for 7 days, then 6,000 mg on day 8 · 8 days per period
Fatigue ratings after recovery were lower than right after the exercise load (P<.01), and lower than placebo in women (P<.05). The fall in 10-second maximum pedaling speed over the session was smaller than with placebo.
- DGrade DNext-morning fatigue and mood after drinking alcohol · Improved
Crossover RCT · n 11 · 2013 · Healthy Japanese adults with the alcohol flushing trait
400 mg once, 30 minutes after alcohol (0.4 g/kg) · One night per condition
Next-morning fatigue, lassitude, anger-hostility and confusion scores fell, reported sleep length rose and waking saliva cortisol was lower than with placebo. Alcohol metabolism did not change.