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Determining attitudinal and behavioral factors concerning milk and dairy intake and their association with calcium intake in college students

  • Rose, Angela M. (Department of Human Sciences, Ohio State University, Human Nutrition Program) ;
  • Williams, Rachel A. (Department of Human Sciences, Ohio State University, Human Nutrition Program) ;
  • Rengers, Brooke (Department of Human Sciences, Ohio State University, Human Nutrition Program) ;
  • Kennel, Julie A. (Department of Human Sciences, Ohio State University, Human Nutrition Program) ;
  • Gunther, Carolyn (Department of Human Sciences, Ohio State University, Human Nutrition Program)
  • Received : 2017.12.16
  • Accepted : 2018.03.02
  • Published : 2018.04.01

Abstract

BACKGROUND/OBJECTIVES: Average intake of calcium among college students is below the recommended intake, and knowledge surrounding the attitudinal and behavioral factors that influence milk and dairy intake, a primary food source of calcium, is limited. The purpose of this study was to evaluate college students' attitudes and behaviors concerning milk and dairy consumption and their association with calcium intake. SUBJECTS/METHODS: Participants were 1,730 undergraduate students who completed an online survey (SurveyMonkey) as part of baseline data collection for a social marketing dairy campaign. The online survey assessed attitudes and behaviors concerning milk and dairy intake, and calcium intake. Questions about milk- and dairy-related attitudes and behaviors were grouped into 14 factors using factor analysis. Predictors of calcium intake were then evaluated. RESULTS: Median calcium intake across all participants was 928.6 mg/day, with males consuming higher calcium intakes than females (P < 0.001). Adjusted for gender, calcium intakes were most strongly (and positively) correlated with associating milk with specific eating occasions and availability (i.e., storing calcium-rich foods in one's dorm or apartment) (both P < 0.001). Other correlates of calcium intake included: positive-viewing milk as healthy (P = 0.039), having family members who drink milk) (P = 0.039), and taking calcium supplements (P = 0.056); and negative-parent rules concerning milk (P = 0.031) and viewing milk in dining halls negatively (P = 0.05). CONCLUSIONS: Calcium intakes among college students enrolled in the current study was below the recommended dietary allowance of 1,000 mg/day, reinforcing the need for dietary interventions in this target population, especially females. Practitioners and researchers should consider the factors found here to impact calcium intake, particularly associating milk with specific eating occasions (e.g., milk with breakfast) and having calcium-rich foods available in the dorm room or apartment, as intervention strategies in future efforts aimed at promoting milk and dairy foods and beverages for improved calcium intake in college students.

Keywords

Acknowledgement

Supported by : American Dairy Association-Mideast

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