"There are no perfect foods," says Dr. Ro. "No food alone contains all nutrients necessary for normal body maintenance in the correct amounts. At the end of the day, no matter what you eat, food accounts for about 60 to 70 percent of the total process of living healthy. The other 30 to 40 percent is still due to physical activity, so you still got to get your butt off that couch and get movin'!"