Which supplement works better to increase testosterone: d-aspartic acid or hmb?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
D-Aspartic Acid
HMB

Effectiveness Rating: D-Aspartic Acid vs HMB

The effectiveness rating is a measure of the supplements' ability to increase testosterone. This rating answers the question of whether or not a supplement does what it claims. The evidence shows neither d-aspartic acid nor hmb has the ability to increase testosterone. Neither supplement will provide positive results for this claim.

Confidence Rating: D-Aspartic Acid 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 d-aspartic acid 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.