Top pick · DoseRank
Why this ranks #1 for endurance performance
#1
NOW Foods, Energy, 90 Veg Capsules
NOW Foods$0.36 / serving4.5 · 1,970Available now
Why this ranks here
- Evidence fitCaffeine Anhydrous is the strongest evidence signal for this outcome.
- Dose fitCaffeine Anhydrous at 200 mg lands inside the studied 200-600 mg window.
- Price / serving$0.36 per serving — mid price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustSolid trust signals from buyer ratings, with room to grow.
Trade-offs
Dose fit is the weak spot on this listEvidence depth trails the rest of this list
The numbers
85
90
60
67
200 mgIn rangeinside the studied 200-600 mg window
100 mgThin evidenceevidence for this ingredient is still thin