Protein & Nutrition Blog – Marmels
Protein & Nutrition Blog – Marmels
Does Dark Chocolate Improve Mood? What the Science Says
by Mo Mandegar, PhD
on Jun 15 2026
Reaching for chocolate after a hard day is not pure imagination. In controlled trials, a roughly 500-milligram dose of cocoa polyphenols lifted positive mood while a 250-milligram dose did nothing, and 85 percent cocoa outperformed 70 percent. Here is what the research shows about dark chocolate and mood, the biology behind it, and why cocoa quality sets the limit.
