Ratings at a Glance

Supplement Effectiveness Rating Confidence Rating
Phenylalanine
Quercetin

Effectiveness Rating: Phenylalanine vs Quercetin

The effectiveness rating is a measure of the supplements' ability to increase fat burning. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up phenylalanine to increase fat burning is much better than the evidence backing up quercetin. Phenylalanine should provide positive results while quercetin will not.

Confidence Rating: Phenylalanine vs Quercetin

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 phenylalanine and quercetin 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.