Which supplement works better to improve cardiovascular endurance: glycerol or tyrosine?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Glycerol
Tyrosine

Effectiveness Rating: Glycerol vs Tyrosine

The effectiveness rating is a measure of the supplements' ability to improve cardiovascular endurance. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up glycerol to improve cardiovascular endurance is much better than the evidence backing up tyrosine. Glycerol should provide positive results while tyrosine will not.

Confidence Rating: Glycerol vs Tyrosine

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.

Glycerol's confidence rating is higher than tyrosine's. This means glycerol's effectiveness rating from above is more valid. This does not necessarily mean that glycerol works better, it simply means the evidence (included in this database) backing up glycerol is more established.