Which supplement works better to increase muscle mass: betaine or d-pinitol?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Betaine
D-pinitol

Effectiveness Rating: Betaine vs D-pinitol

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 shows betaine is better than d-pinitol in its ability to increase muscle mass. Betaine should provide some positive results while d-pinitol will not.

Confidence Rating: Betaine vs D-pinitol

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 betaine and d-pinitol 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.