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A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.
Direct side-by-side from the meta-analysis. Each row is an outcome where ≥2 of your selected supplements have pooled data. Best effect per row highlighted.
| Outcome | Caffeine | Ginkgo Biloba |
|---|---|---|
| Sharpen focus — Reaction Time − better · ms | −28.8 weak · CI ∋ 0 | −4.8 weak · CI ∋ 0 |
200mg
Morning · with food (preferred)
Pill/capsule for precise dosing
240mg
Morning · with food (preferred)
Standardized extract capsules (EGb 761)
15-45 minutes
30-60 minutes
30-60 minutes
4-6 weeks
4-8 weeks
First week
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