The stratification of foods on the basis of overall nutritional quality: the overall nutritional quality index

American Journal of Health Promotion : AJHP
David L KatzKeith T Ayoob

Abstract

Consumer understanding of nutrition information is key to making dietary choices consistent with guidelines. The development of an objective, science-based, and universally applicable system of nutrition guidance would be of considerable potential value to the public health. A multidisciplinary expert panel was convened to develop the Overall Nutritional Quality Index (ONQI). Dietary guidelines, existing nutritional scoring systems, and other pertinent scientific literature were reviewed. An algorithm based on the overall nutritional quality of food was developed and subjected to consumer research and validation testing. The ONQI algorithm incorporates over 30 entries representing both micronutrient and macronutrient properties of foods, as well as weighting coefficients representing epidemiologic associations between nutrients and health outcomes. The basic entry in the algorithm is a weighted trajectory score, which compares nutrient concentration in a food to the recommended concentration of a given nutrient in a healthful diet. In content validity testing, ONQI rankings and expert panel rankings correlated highly (R = .92; p < .001). In regression analysis, aggregated ONQI scores for total diet corresponded well with the He...Continue Reading

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Citations

Mar 2, 2011·Public Health Nutrition·David L KatzCatherine Katz
Mar 24, 2012·Public Health Nutrition·Kristy L HawleyKelly D Brownell
Nov 10, 2010·International Journal of Obesity : Journal of the International Association for the Study of Obesity·D L Katz
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Nov 2, 2011·American Journal of Health Promotion : AJHP·Leslie M FischerJeffrey Blumberg
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