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Changes in Food Sources of Calcium, Potassium, and Magnesium in the Diets of Adolescents with Hypertension in Response to a Behavioral Nutrition Intervention Emphasizing Fruit, Vegetable, and Low-fat Dairy Foods

Thomas, Ingrid M.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1311775395

Abstract Details

2011, MS, University of Cincinnati, Allied Health Sciences: Nutrition.
Purpose. To determine whether major food sources of calcium, magnesium and potassium differ between adolescents with pre-hypertension and hypertension who received a behavioral nutrition intervention that focused on fruits, vegetables, and low-fat dairy foods (the DASH-4-Teens Intervention) compared to those that received usual hospital-based nutrition care. Methods. Fifty-seven adolescents with hypertension or pre-hypertension were randomly assigned to a dietary intervention, DASH-4-Teens, (n=29) or the usual, one visit, hospital-based nutrition care (UC) (n=28). Dietary intake was collected through the use of 24-hr dietary recalls that were obtained over three days on three separate time points: baseline, post-treatment (3 months after baseline), and a three month follow-up. The nutrient content of participants’ diets were analyzed using the Minnesota Nutrient Data systems Software in conjunction with food label codes generated by the Nutrition Data Systems summary file. Individual foods were classified into 135 food groups and percentages for nutrient composition and average nutrient intake were generated for each. Results. The DASH4-Teens intervention was related to a sustained increase in percent contribution of unprocessed fruits and vegetables as major food sources of potassium. This finding did not hold true with the UC group. Unexpectedly, fast foods were a significant contributor to potassium, magnesium and calcium intake in the diets of teens in both intervention groups. However, among DASH participants, intake of these foods decreased in response to the intervention, whereas consumption did not decrease in the UC group. In addition, more low-fat dairy foods were used to increase calcium, potassium and magnesium intake in the DASH group compared to the UC group. Conclusion. DASH-4-Teens can help hypertensive adolescents make informed decisions resulting in sustained intake of unprocessed fruits and vegetables, lower intake of fast foods, and greater low-fat dairy consumption, as well as increased intake in vital nutrients, such as calcium and potassium. These behavioral dietary modifications may have contributed to the observed reduction of blood pressure in the DASH participants relative to UC participants. With the growing number of studies detailing the tracking of adolescent hypertension into adulthood and its detrimental health consequences, more effective dietary and behavioral modification programs for this age group, like DASH-4-Teens, are needed.
Sarah Couch, PhD (Committee Chair)
Abigail Peairs, PhD (Committee Member)
68 p.
Nutrition
DASH-4-Teens diet analysis; potassium sources for adolescents; magnesium source for adolescents; calcium sources for adolescents; nutrient intake analysis for adolescents; DASH-4-Teens diet modification

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Citations

  • Thomas, I. M. (2011). Changes in Food Sources of Calcium, Potassium, and Magnesium in the Diets of Adolescents with Hypertension in Response to a Behavioral Nutrition Intervention Emphasizing Fruit, Vegetable, and Low-fat Dairy Foods [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1311775395

    APA Style (7th edition)

  • Thomas, Ingrid. Changes in Food Sources of Calcium, Potassium, and Magnesium in the Diets of Adolescents with Hypertension in Response to a Behavioral Nutrition Intervention Emphasizing Fruit, Vegetable, and Low-fat Dairy Foods. 2011. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1311775395.

    MLA Style (8th edition)

  • Thomas, Ingrid. "Changes in Food Sources of Calcium, Potassium, and Magnesium in the Diets of Adolescents with Hypertension in Response to a Behavioral Nutrition Intervention Emphasizing Fruit, Vegetable, and Low-fat Dairy Foods." Master's thesis, University of Cincinnati, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1311775395

    Chicago Manual of Style (17th edition)

ucin1311775395
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© 2011, some rights reserved.Creative Commons License Changes in Food Sources of Calcium, Potassium, and Magnesium in the Diets of Adolescents with Hypertension in Response to a Behavioral Nutrition Intervention Emphasizing Fruit, Vegetable, and Low-fat Dairy Foods by Ingrid M. Thomas is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.