Which supplement works better to improve cognitive ability: b vitamin complex or dehydroepiandrosterone (dhea)?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
B Vitamin Complex
Dehydroepiandrosterone (DHEA)

Effectiveness Rating: B Vitamin Complex vs Dehydroepiandrosterone (DHEA)

The effectiveness rating is a measure of the supplements' ability to improve cognitive ability. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up b vitamin complex to improve cognitive ability is much better than the evidence backing up dehydroepiandrosterone (dhea). B Vitamin Complex should provide positive results while dehydroepiandrosterone (dhea) will not.

Confidence Rating: B Vitamin Complex vs Dehydroepiandrosterone (DHEA)

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 b vitamin complex and dehydroepiandrosterone (dhea) 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.