Which supplement works better to improve cycling performance: caffeine anhydrous or polyphenols?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Caffeine Anhydrous
Polyphenols

Effectiveness Rating: Caffeine Anhydrous vs Polyphenols

The effectiveness rating is a measure of the supplements' ability to improve cycling performance. This rating answers the question of whether or not a supplement does what it claims. The evidence shows caffeine anhydrous is better than polyphenols in its ability to improve cycling performance. Caffeine Anhydrous should provide some positive results while polyphenols will not.

Confidence Rating: Caffeine Anhydrous 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.

Caffeine Anhydrous's confidence rating is higher than polyphenols's. This means caffeine anhydrous's effectiveness rating from above is more valid. This does not necessarily mean that caffeine anhydrous works better, it simply means the evidence (included in this database) backing up caffeine anhydrous is more established.