Which supplement works better to reduce muscle soreness: betaine or black pepper fruit extract (piperine)?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Betaine
Black Pepper Fruit Extract (Piperine)

Effectiveness Rating: Betaine vs Black Pepper Fruit Extract (Piperine)

The effectiveness rating is a measure of the supplements' ability to reduce muscle soreness. This rating answers the question of whether or not a supplement does what it claims. The evidence shows neither betaine nor black pepper fruit extract (piperine) has the ability to reduce muscle soreness. Neither supplement will provide positive results for this claim.

Confidence Rating: Betaine vs Black Pepper Fruit Extract (Piperine)

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 black pepper fruit extract (piperine) 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.