The purpose of this study was to determine if the amount and variety of fruits and vegetables consumed increased among community-dwelling older adults participating in Kentucky's congregate meal site program following a series of five nutrition education lessons. A convenience sample of older adults attending senior centers (n=35), two intervention (n=19) and two control (n=16) centers, participated in this quasi-experimental pilot study. Following the intervention there was a significant increase in actual fruit and vegetable intake in the intervention group (p<0.05) as assessed by plate waste measurements of the congregate lunch meal. In addition, from pre- to post-intervention, a trend towards increased self-reported intake in the variety of fruit and vegetables was observed among the intervention group. As well, a significant increase in the number of days intervention participants self-reported consuming at least 4.5 cups of fruits and vegetables in the last seven days (2.44±2.09 days to 4.28±1.99 days (p=0.004)) was observed; and knowledge pertaining to phytochemicals increased (p<0.05). The phytochemical index (PI) score of the lunch meal, taking into account that the older adults consumption of meal components, including phytochemical-rich foods, was 26.9. Overall, study results indicated that a short theory-based nutrition education program offered to community-dwelling older adults was linked to an increase in fruit and vegetable consumption and phytochemical knowledge.
Keywords: Fruits and vegetables; older adults; phytochemicals; plate waste.