| Effect | Increase |
| Trial Design | Double blind |
| Trial Length | 1-6 months |
| Number of Subjects | 72 |
| Gender | Both Genders |
| Age Range | 45-64 |
| Body Types | Average |
30 days supplementation of 250-500mg cocoa polyphenols in older adults subject to cognitive testing noted that 500mg was associated with increased calmness and contentness when compared to placebo; the battery of cognitive testing failed to find a benefit with cocoa polyphenols.
