Fatty Meats
Besides being high in saturated fat, foods like brisket and bacon can lower the body’s serotonin levels, Jamieson-Petonic says. “When serotonin drops, we feel angry, grumpy, and irritable,” she says. When you’re shopping for meats, skip the greasy, marbled cuts in favor of trimmer alternatives, like chicken, turkey, and ground beef that’s 90 percent lean or better.