Sources of Error and Nutritional Adequacy of the Food Guide Pyramid

Abstract

The authors assessed the accuracy of college students' use of the Food Guide Pyramid (FGP) in their diets and evaluated sources of error and nutritional adequacy of the pyramid. Students enrolled in an undergraduate nutrition class (N = 346) completed 3-day dietary records that were analyzed, using computer software, to determine individual recommended dietary allowance (RDA) values and the extent to which the students' diets met those values. The students' most common error in using the FGP was underestimating serving sizes. Only 8% of the students consumed the minimum recommended number of servings for all food groups, but diets that satisfied FGP recommendations also tended to satisfy RDA requirements. Less than 2% of the students who met the minimal number of FGP servings did not satisfy their RDA values, but less than 45% of the survey participants, regardless of gender or residence, met the recommended intake for dietary fiber. The FGP was judged to be a good indicator of dietary adequacy.

Key Words:

• diet
• fiber
• Food Guide Pyramid
• nutrition
• recommended dietary allowance

Additional information

Notes on contributors

Cindy Heiss

Suzanne Tavelli, Kathy Beerman, and Jill E. Shultz are with the Department of Food Science and Human Nutrition at Washington State University in Pullman. Cindy Heiss is with the Department of Food Science and Nutrition at California Polytechnic, San Luis Obispo.