Which supplement works better to improve cognitive ability: caffeine anhydrous or vitamin b12?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Caffeine Anhydrous
Vitamin B12

Effectiveness Rating: Caffeine Anhydrous vs Vitamin B12

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 vitamin b12 in its ability to improve cognitive ability. Caffeine Anhydrous should provide some positive results while vitamin b12 will not.

Confidence Rating: Caffeine Anhydrous vs Vitamin B12

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.

Caffeine Anhydrous's confidence rating is higher than vitamin b12's. This means caffeine anhydrous's effectiveness rating from above is more valid. This does not necessarily mean that caffeine anhydrous works better, it simply means the evidence (included in this database) backing up caffeine anhydrous is more established.