Which supplement works better to improve sprint performance: ashwagandha extract (withania somnifera) or nitrate?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Ashwagandha Extract (Withania Somnifera)
Nitrate

Effectiveness Rating: Ashwagandha Extract (Withania Somnifera) vs Nitrate

The effectiveness rating is a measure of the supplements' ability to improve sprint performance. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up ashwagandha extract (withania somnifera) to improve sprint performance is much better than the evidence backing up nitrate. Ashwagandha Extract (Withania Somnifera) should provide positive results while nitrate will not.

Confidence Rating: Ashwagandha Extract (Withania Somnifera) 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 ashwagandha extract (withania somnifera) 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.