On any given day, 20 percent of the U.S. population age 2 and older consume diet drinks and 11 percent down 16 ounces or more, health researchers say.
In 2009-10, the National Health and Nutrition Examination Survey found the percentage consuming diet drinks was similar for females and males at all ages except among adolescents ages 12-19. The percentage of those consuming diet drinks increased with age for both males and females, the survey showed.