Which supplement works better to improve high-intensity interval training (HIIT) performance: glutamine or hmb?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Glutamine
HMB

Effectiveness Rating: Glutamine vs HMB

The effectiveness rating is a measure of the supplements' ability to improve high-intensity interval training (HIIT) performance. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up hmb to improve high-intensity interval training (HIIT) performance is much better than the evidence backing up glutamine. HMB should provide positive results while glutamine will not.

Confidence Rating: Glutamine vs HMB

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 glutamine and hmb 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.