Which supplement works better to improve cognitive ability: caffeine anhydrous or docosahexaenoic acid (dha)?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Caffeine Anhydrous
Docosahexaenoic Acid (DHA)

Effectiveness Rating: Caffeine Anhydrous vs Docosahexaenoic Acid (DHA)

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 shows caffeine anhydrous is better than docosahexaenoic acid (dha) in its ability to improve cognitive ability. Caffeine Anhydrous should provide some positive results while docosahexaenoic acid (dha) will not.

Confidence Rating: Caffeine Anhydrous vs Docosahexaenoic Acid (DHA)

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 caffeine anhydrous and docosahexaenoic acid (dha) have great confidence rating. This means both supplement's effectiveness ratings above are valid.