| Dimension | Scoring Notes | Score |
|---|---|---|
| Study Design | Multiple human RCTs across cognitive aging, exercise performance, and antioxidant effects. Also studied in clinical populations (diabetes, cardiovascular). Strong design quality — multiple independent RCTs. |
25 / 25 |
| Sample Size | Individual trials typically 50-150 participants. Not massive but well-powered for aging/supplement research. |
16 / 20 |
| Replication | Replicated across multiple independent groups — Australian (Alan Stegen group), European, and Asian research groups independently confirm performance and neuroprotective effects. |
15 / 20 |
| Journal Impact Factor | Published in FASEB Journal (IF ~5), British Journal of Nutrition (IF ~3.5), Journal of the International Society of Sports Nutrition (IF ~4). Solid mid-tier journals. |
8 / 15 |
| Funding Independence | Mix of academic and some nutraceutical industry funding. Australian academic groups (University of Melbourne) have published independently. Mixed but leaning independent. |
4 / 10 |
| Population Diversity | Studied across older adults, athletes, and diabetic patients. Mix of demographics but not globally diverse. |
3 / 5 |
| Researcher h-Index | Alan Stegen (University of Melbourne) and Michael Belber — moderate academic h-Indexes (10-19 range) in sports nutrition and aging. |
2 / 5 |