Which supplement works better to improve high-intensity interval training (HIIT) performance: beta alanine or nitrate?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Beta Alanine
Nitrate

Effectiveness Rating: Beta Alanine vs Nitrate

The effectiveness rating is a measure of the supplements' ability to improve high-intensity interval training (HIIT) performance. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up beta alanine to improve high-intensity interval training (HIIT) performance is much better than the evidence backing up nitrate. Beta Alanine should provide positive results while nitrate will not.

Confidence Rating: Beta Alanine vs Nitrate

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 beta alanine and nitrate 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.