Oatmeal
Because fiber takes so long to digest, having oatmeal for breakfast will power you through the entire morning, compared with a breakfast of white toast and jelly, explains Melinda Johnson, RD, director of the didactic program in dietetics at Arizona State University in Phoenix, and president-elect of the Arizona Academy of Nutrition and Dietetics. With stable blood-sugar levels, you’ll feel energized and focused without feeling the need to down another cup of coffee.