Which supplement works better to improve sports performance: arginine or beta alanine?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Arginine
Beta Alanine

Effectiveness Rating: Arginine vs Beta Alanine

The effectiveness rating is a measure of the supplements' ability to improve sports performance. This rating answers the question of whether or not a supplement does what it claims. Both arginine and beta alanine have great evidence backing up their ability to improve sports performance. They should both provide positive results.

Confidence Rating: Arginine vs Beta Alanine

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 arginine and beta alanine 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.