Which supplement works better to improve memory: 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 memory. This rating answers the question of whether or not a supplement does what it claims. The evidence backing up docosahexaenoic acid (dha) is great, while the evidence backing up caffeine anhydrous is good. Docosahexaenoic Acid (DHA) should be able to improve memory more effectively, however both supplements should provide positive results.

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.

Docosahexaenoic Acid (DHA)'s confidence rating is higher than caffeine anhydrous's. This means docosahexaenoic acid (dha)'s effectiveness rating from above is more valid. This does not necessarily mean that docosahexaenoic acid (dha) works better, it simply means the evidence (included in this database) backing up docosahexaenoic acid (dha) is more established.