The effects of variety in food choices on dietary quality

The purpose of this study was to examine the effects of overall dietary variety, variety among major food groups, and variety within major food groups on dietary quality. Nutritional adequacy, one aspect of dietary quality, was measured by a Mean Adequacy Ratio (MAR)--an index of the percent of recommended intake for 11 nutrients. Other dietary quality measures included the percent of calories from fat and sugar and total intakes of energy,...