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Community and International Nutrition

Added Sugars Displaced the Use of Vital Nutrients in the National Food Stamp Program Survey

Department of Economics, University of Houston, Houston, TX 77204-5019

^* To whom correspondence should be addressed. E-mail: bhargava{at}uh.edu.

Recent increases in consumption of added sugars in the US can reduce intake of vital nutrients and increase the overall energy intakes. A comprehensive framework is necessary for addressing the controversy surrounding the effects of added sugars on nutrient intakes while controlling for dietary knowledge, behavioral factors, and total energy intakes, especially among low-income households. This paper analyzed the proximate determinants of 1-wk availability (or use) of added sugars by 913 households participating in the National Food Stamp Program Survey conducted in 1996–97. In addition, households' use of protein; fiber; calcium; iron; ß-carotene; vitamins A, C, E, B-6, and B-12; folic acid; and potassium were explained by socioeconomic and behavioral factors and by added sugars use. Linear programming analyses were conducted for assessing the effects of food prices on added sugars use. Participation in Supplemental Food Program for Women, Infants and Children program, food stamp benefits, and consumption of low-fat diets were associated (P < 0.05) with lower added sugars use. Furthermore, greater use of added sugars significantly lowered households' uses of protein; iron; vitamins A, C, B-6, and B-12; and potassium. Behavioral and socioeconomic variables such as adopting a low-fat diet, consuming fruits and vegetables, saving money at grocery stores, frequency of shopping trips, skipping meals, and food insecurity were often important predictors of nutrient use. Overall, the results indicated that added sugars should be discouraged in dietary guidelines, because their adverse effects on diet quality were evident in this low-income population.