How well do consumers understand percentage daily value on food labels?

One hundred four adults completed a multiple choice food label comprehension questionnaire and a food frequency questionnaire. Most respondents were able to accurately rate the fat content of five different foods using only the food label information. However, some underestimated food content for some foods. Also, only 29% correctly selected the definition of % daily value for fat (%DV), as "percent of the maximum daily recommended amount of fat."