Which supplement works better to increase strength: betaine or tribulus terrestris?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Betaine
Tribulus Terrestris

Effectiveness Rating: Betaine vs Tribulus Terrestris

The effectiveness rating is a measure of the supplements' ability to increase strength. This rating answers the question of whether or not a supplement does what it claims. The evidence shows neither betaine nor tribulus terrestris has the ability to increase strength. Neither supplement will provide positive results for this claim.

Confidence Rating: Betaine vs Tribulus Terrestris

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.

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