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Title: THE NUTRITIONAL IMPACT OF DAIRY PRODUCT CONSUMPTION ON DIETARY INTAKES OF YOUNG ADULTS (1995-1996): THE BOGALUSA HEART STUDY

Authors
item Ranganathan, Rajeshwari - BAYLOR COLLEGE OF MED
item Nicklas, Theresa
item Yang, Su-Jau - BAYLOR COLLEGE OF MED
item Berenson, Gerald - TULANE UNIVERSITY

Submitted to: Journal Of The American Dietetic Association
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 24, 2005
Publication Date: September 1, 2005
Citation: Ranganathan,R., Nicklas TA, Yang,S-J., Berenson,G.S. 2005. The nutritional impact of dairy product consumption on dietary intakes of adults (1995-1996): the Bogalusa Heart Study. Journal of the American Dietetic Association. 105(9):1391-1400.

Interpretive Summary: Dairy product consumption by adults has a major impact on their nutrient intakes. The higher intakes of saturated fat, total energy, and animal protein and lower intake of fiber suggest that it may be useful to consume lower fat dairy products and/or modify eating patterns to optimize the nutritional contributions of dairy products. Public health organizations and dietitians need to educate adults on practical strategies for increasing dairy product consumption for improving the nutritional quality of adults diets.

Technical Abstract: To examine the nutritional impact of dairy product consumption on the dietary intakes of adults. Dietary intakes of adults who participated in a cross-sectional survey (1995-1996) in Bogalusa, Louisiana. Dietary intake data was collected on 1266 adults (61% females, 39% males; 74% whites, 26% blacks) in Bogalusa, Louisiana. Analysis of covariance was used to examine the mean nutrient intake differences among 4 dairy consumption groups. Significance tests in multiple comparisons between any two groups were conducted using Tukey’s procedure. Forty-eight percent of adults consumed one serving or less of dairy products, 32% consumed 2 servings, 12% consumed 3 servings and 8% consumed 4 or more servings. Overall mean intake of dairy was higher in whites (sample mean = 1.63) compared to blacks (sample mean = 1.22)(p < 0.0001), specifically the consumption of milk and cheese. No gender differences were found in overall mean intake of dairy servings after adjusting for energy intake. However, females consumed significantly more servings of cheese (p < 0.0001) and yogurt (p < 0.01) than males. There were higher intakes of total energy, saturated fat, total protein, animal protein and lactose (p<0.0001), with greater number of servings of dairy products consumed. There were lower intakes of monounsaturated and polyunsaturated fatty acids (p < 0.0001), vegetable protein (p < 0.0001), total carbohydrates (p < 0.01), sucrose (p < 0.001), fructose (p < 0.0001) and fiber (p < 0.001). The percentage of energy from saturated fat (p<0.0001) and protein (p<0.001) increased with increasing number of dairy servings consumed. Intakes of calcium, magnesium, potassium, zinc, sodium, folate and vitamins B1, B2, B6, B12, A, D and E were higher with greater number of dairy servings consumed. There was lower consumption of sweetened beverages (p<0.001), specifically regular soft drinks (p<0.0001), with greater consumption of milk products. Dairy product consumption by adults has a major impact on their vitamin and mineral intakes. The higher intakes of saturated fat, total energy, and animal protein and lower intake of fiber suggest that it may be useful to consume lower fat dairy products and/or modify eating patterns to optimize the nutritional contributions of dairy products. Public health organizations and dietitians need to educate adults on practical strategies for increasing dairy product consumption for improving the nutritional quality of adults diets.

   
 
 
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