Which supplement works better to improve sports performance: branched chain amino acids or tribulus terrestris?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Branched Chain Amino Acids
Tribulus Terrestris

Effectiveness Rating: Branched Chain Amino Acids vs Tribulus Terrestris

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. The evidence backing up tribulus terrestris to improve sports performance is much better than the evidence backing up branched chain amino acids. Tribulus Terrestris should provide positive results while branched chain amino acids will not.

Confidence Rating: Branched Chain Amino Acids vs Tribulus Terrestris

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 branched chain amino acids and tribulus terrestris 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.