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Evidence suggests Caffeine haslittle to no effecton Cognitive performance.
3 studies (2 claims)
Exact normalized-entity scope. Exact scope. Claims must match the selected normalized intervention and endpoint IDs; signal links are not expanded. Direction describes the stored endpoint phrase and is not a benefit/harm judgement.
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| Intervention | Direction | Endpoint | Type | Population | Dosage | Title |
|---|---|---|---|---|---|---|
| caffeine | No effect - neither caffeine nor glucose significantly influence cognitive performance | cognitive performance | Human | young adults | Not specified | Feeling smart: Effects of caffeine and glucose on cognition, mood and self-judgment.cited 25× |
| caffeine | Increases - could be used to enhance | cognitive performance | Human | healthy young adults in a military context when personnel are sleep-deprived | — | A Systematic Review of the Effect of Dietary Supplements on Cognitive Performance in Healthy Young Adults and Military Personnel.cited 18× |
| caffeine (5 mg/kg) | No effect - compare this to an equivalent guarana dose | cognitive performance | Human | Twenty-five participants | — | Cognitive effects of guarana supplementation with maximal intensity cycling.cited 4× |