My Mood Booster Hits: 77 If we crave chocolate when we’re down, tryptophan ups mood-lifting serotonin in the brain, that even the taste, texture, and smell make us happy. And it’s natural mood booster. By suzannita TV journalist, traveler, writer, blogger, taekwondo-in and volunteer. Bookworm, coffee addict, chocolate and ice cream lovers View all of suzannita's posts.