Which supplement works better to increase muscle mass: arachidonic acid or hmb?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Arachidonic Acid
HMB

Effectiveness Rating: Arachidonic Acid vs HMB

The effectiveness rating is a measure of the supplements' ability to increase muscle mass. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up hmb is great, while the evidence backing up arachidonic acid is good. HMB should be able to increase muscle mass more effectively, however both supplements should provide positive results.

Confidence Rating: Arachidonic 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.

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