Which supplement works better to improve cycling performance: coenzyme q10 or vitamin c?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Coenzyme Q10
Vitamin C

Effectiveness Rating: Coenzyme Q10 vs Vitamin C

The effectiveness rating is a measure of the supplements' ability to improve cycling performance. This rating answers the question of whether or not a supplement does what it claims. The evidence shows coenzyme q10 is better than vitamin c in its ability to improve cycling performance. Coenzyme Q10 should provide some positive results while vitamin c will not.

Confidence Rating: Coenzyme Q10 vs Vitamin C

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.

Coenzyme Q10's confidence rating is higher than vitamin c's. This means coenzyme q10's effectiveness rating from above is more valid. This does not necessarily mean that coenzyme q10 works better, it simply means the evidence (included in this database) backing up coenzyme q10 is more established.