Which supplement works better to improve sprint performance: caffeine anhydrous or potassium?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Caffeine Anhydrous
Potassium

Effectiveness Rating: Caffeine Anhydrous vs Potassium

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

Confidence Rating: Caffeine Anhydrous vs Potassium

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 potassium'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.