Which supplement works better to improve running performance: beetroot juice or beta alanine?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Beetroot Juice
Beta Alanine

Effectiveness Rating: Beetroot Juice vs Beta Alanine

The effectiveness rating is a measure of the supplements' ability to improve running performance. This rating answers the question of whether or not a supplement does what it claims. Both beetroot juice and beta alanine have good (but not great) evidence showing they may be able to improve running performance. Both supplements should provide some positive results.

Confidence Rating: Beetroot Juice 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 beetroot juice and beta alanine have great confidence rating. This means both supplement's effectiveness ratings above are valid.