Which supplement works better to improve running performance: beetroot juice or docosahexaenoic acid (dha)?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Beetroot Juice
Docosahexaenoic Acid (DHA)

Effectiveness Rating: Beetroot Juice vs Docosahexaenoic Acid (DHA)

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. The evidence shows beetroot juice is better than docosahexaenoic acid (dha) in its ability to improve running performance. Beetroot Juice should provide some positive results while docosahexaenoic acid (dha) will not.

Confidence Rating: Beetroot Juice vs Docosahexaenoic Acid (DHA)

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.

Beetroot Juice's confidence rating is higher than docosahexaenoic acid (dha)'s. This means beetroot juice's effectiveness rating from above is more valid. This does not necessarily mean that beetroot juice works better, it simply means the evidence (included in this database) backing up beetroot juice is more established.