5 Unexpected Mood-Boosting Foods You're Probably Eating

Go ahead, dig into a nice big bowl of chowda. Clams are "the top source of vitamin B12, which is vital to brain health, good mood and focus," says Drew Ramsey, MD, psychiatrist and author of Eat Complete: The 21 Nutrients That Fuel Brainpower, Boost Weight Loss and Transform Your Health. B12 is used by your body to make hormones called neurotransmitters, which are necessary to keep your attitude up. In fact, one cup of chowder offers more than 200 percent of your daily need for the vitamin.