Fig. 1

Trends in variety of vegetable intake among adults a) overall, and by b) sex, from 1999 to 2014. NHANES, National Health and Nutrition Examination Survey. Maximum possible variety score is 0.64. Mean (1999–2014) variety score for men = 34.5, women = 33.9, P for difference = 0.007. Sample sizes are: 38,981 overall, 20,270 women, 18,711 men