Effectiveness Rating for Caffeine's Ability to Improve Mood

The effectiveness rating is a measure of how well caffeine is able to improve mood. The overall rating for this claim is 2 out of 3. There is some research showing the supplement's ability to deliever on this particular claim is warranted. Using Caffeine to improve mood may lead to positive results.

Confidence Rating for Caffeine's Ability to Improve Mood

The confidence rating is a mesure of how valid the effectiveness rating is. This rating is based on how many studies are included in the database on this topic.

There are 8 studies in the database on caffeine; the confidence rating is 160. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating.

Caffeine Dose to Improve Mood

Dosage Frequency Daily Total Effectiveness Rating of Dosage
200mg once daily 200mg


Title of Study
Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training. Sea-Air-Land
Effects of repeated doses of caffeine on mood and performance of alert and fatigued volunteers
Effects of low doses of caffeine on cognitive performance, mood and thirst in low and higher caffeine consumers
Effects of caffeine in non-withdrawn volunteers
Caffeine effects on mood and memory
Effects of caffeine on mood and performance: a study of realistic consumption
Effects of caffeine on mood and memory
The effects of alpha-glycerylphosphorylcholine, caffeine or placebo on markers of mood, cognitive function, power, speed, and agility