Food Price and Diet and Health Outcomes
Year: 2010
Type: article
Abstract: BACKGROUND: Despite surging interest in taxation as a policy to address poor food choice, US research directly examining the association of food prices with individual intake is scarce. METHODS: This 20-year longitudinal study included 12 123 respondent days from 5115 participants in the Coronary Artery Risk Development in Young Adults (CARDIA) Study. Associations between food price, dietary intake, overall energy intake, weight, and homeostatic model assessment insulin resistance (HOMA-IR) scores were assessed using conditional log-log and linear regression models. RESULTS: The real price (inflated to 2006 US dollars) of soda and pizza decreased over time; the price of whole milk increased. A 10% increase in the price of soda or pizza was associated with a -7.12% (95% confidence interval [CI], -63.50 to -10.71) or -11.5% (95% CI, -17.50 to -5.50) change in energy from these foods, respectively. A $1.00 increase in soda price was also associated with lower daily energy intake (-124 [95% CI, -198 to -50] kcal), lower weight (-1.05 [95% CI, -1.80 to -0.31] kg), and lower HOMA-IR score (0.42 [95% CI, -0.60 to -0.23]); similar trends were observed for pizza. A $1.00 increase in the price of both soda and pizza was associated with greater changes in total energy intake (-181.49 [95% CI, -247.79 to -115.18] kcal), body weight (-1.65 [95% CI, -2.34 to 0.96] kg), and HOMA-IR (-0.45 [95% CI, -0.59 to -0.31]). CONCLUSION: Policies aimed at altering the price of soda or away-from-home pizza may be effective mechanisms to steer US adults toward a more healthful diet and help reduce long-term weight gain or insulin levels over time.
Source: Archives of Internal Medicine
Author: Kiyah J. Duffey
Institution: University of North Carolina at Chapel Hill
Language: English
Subfield: Economics and Econometrics
Domain: Social Sciences
Open Access status: green
Funders: National Institutes of Health, Centers for Disease Control and Prevention, University of North Carolina at Chapel Hill, National Institute on Alcohol Abuse and Alcoholism, National Heart, Lung, and Blood Institute, National Cancer Institute, National Institute of Diabetes and Digestive and Kidney Diseases, National Institute of Environmental Health Sciences, Eunice Kennedy Shriver National Institute of Child Health and Human Development
Awards: CARDIA, Obesity and the Environment: The Transition to Adulthood, Carolina Population Center, G1241292848, G1320508115, CARDIA, CARDIA, G1789099407, G191650467, CARDIA, G3107571658, G3396487927, G4165892905, Coronary Artery Risk Development in Young Adults (CARDIA) Study - Field Center, G50822097, G510023084, G582705428, Diet, Activity, Obesity & The Built Environment Dynamics, G6520056932, G715477388, Determinants and Consequences of Alcohol Consumption, Young Adult Environmental and Physical Activity Dynamics, YOU ARE WHAT YOU EAT: LONGITUDNAL ASSOCIATIONS BETWEEN THE NEIGHBORHOOD FOOD ENVI, UNC Center for Environmental Health and Susceptibility, Nutrition Obesity Research Center (NORC)
OpenAlex ID: W2028755683