Exogenous Ketones and exercise
What 2 graded rows on exogenous ketones agree on for exercise, and where they differ. Counted side by side, never averaged.
Consensus finder Rows from the Exogenous Ketones page, reviewed Oct 21, 2026 How it decides
What the rows agree on
Each block and row is one graded row from the Exogenous Ketones page, with its PubMed record.
Your question
Exogenous Ketones and exercise
2 rows · 103 peopleSplit. 1 row found no difference and 1 found a worse outcome.
- CGrade C× 1
- DGrade D× 1
- Rows
- 2
- Trials
- 9
- People
- 103
- Pooled reviews may count some twice
Where they differ
From the rowsThe best-graded row, grade C, is a meta-analysis of 80 people (2022) and found no difference.
The row that found no difference was larger: 80 people, against 23 people for the row that found a worse outcome.
The row that found no difference is a pooled review of several trials; the row that found a worse outcome is a single study.
Only the row that found no difference names women and men in its population. Only the row that found a worse outcome names athletes or trained people in its population.
The row that found a worse outcome is newer (2023) than the row that found no difference (2022).
The best grade is C among the row that found no difference, and D among the row that found a worse outcome.
The rows
1 no difference · 1 worse- CGrade CEndurance exercise performance · No difference
Meta-analysis, 8 studies · n 80 · 2022 · Participants in 8 RCTs (77 men, 3 women)
Not stated in the abstract · Single doses before exercise
No difference from control in endurance performance overall (Hedges g 0.136, 95% CI −0.195 to 0.467), in time to exhaustion or in time trials. Monoesters raised blood ketones more than precursors.
Row on the Exogenous Ketones page · PubMed 35042186 (opens PubMed)
- DGrade D20-minute cycling time-trial power · Worse
Crossover RCT · n 23 · 2023 · Trained cyclists
0.35 g/kg body weight, 30 minutes before exercise · Single dose
Mean power was 2.4% lower after the ketone ester than after placebo (255 vs 261 W).
Row on the Exogenous Ketones page · PubMed 37185454 (opens PubMed)