Which supplement works better to improve cycling sprint performance: golden root extract - rhodiola or polyphenols?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Golden Root Extract - Rhodiola
Polyphenols

Effectiveness Rating: Golden Root Extract - Rhodiola vs Polyphenols

The effectiveness rating is a measure of the supplements' ability to improve cycling sprint performance. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up polyphenols is great, while the evidence backing up golden root extract - rhodiola is good. Polyphenols should be able to improve cycling sprint performance more effectively, however both supplements should provide positive results.

Confidence Rating: Golden Root Extract - Rhodiola vs Polyphenols

Another factor to take into account when comparing supplements is the confidence rating. This rating is a measure of how valid each supplement's effectiveness rating is. Remember, the confidence rating is a measure of how much you can trust the effectiveness rating. This rating is based on how many studies are included in the database on a supplement's claims. Ideally, you want a high effectiveness AND confidence rating.

Both golden root extract - rhodiola and polyphenols have low confidence ratings. This means neither supplement has an adequate amount of research to back up this claim. A low confidence rating questions the validity of the effectiveness rating.