Consumption of 85% cocoa dark chocolate improves mood in association with gut microbial changes in healthy adults: a randomized controlled trial (opens in new tab)

To determine whether dark chocolate consumption influences mood in everyday life, we measured positive and negative affect before and after the 3-week intervention period. We found that dark chocolate consumption had no significant impact on positive affect (P=.498, Table 2). However, negative affect was significantly altered by dark chocolate consumption (Table 2). The DC85 group showed a significant decrease in negative affect (-4.33 ± 5.91, P=.029), while the change in negative affect foll...