Association of dairy intake with weight change in adolescents undergoing obesity treatment. (5th April 2018)

• Record Type: Journal Article
• Authors: Wrotniak, Brian H; Georger, Lesley; Hill, Douglas L; Zemel, Babette S; Stettler, Nicolas
• Is Part Of: Journal of public health. Volume 41:Number 2(2019:Jun.)
• Page Start: 338
• Page End: 345
• Publication Date: 2018-04-05
• Subjects: obesity -- children -- food and nutrition; Public health -- Periodicals; Public health -- Great Britain -- Periodicals; Medical policy -- Periodicals; Medical policy -- Great Britain -- Periodicals; 362.1
• DOI: 10.1093/pubmed/fdy064
• Languages: English
• ISSNs: 1741-3842

Abstract

Abstract: Background: The role of dairy products in obesity treatment for adolescents is unclear. The study purpose was to assess the association between dairy intake and changes in BMI z -score ( z BMI) during adolescent obesity treatment. Methods: Observational study nested within a randomized control trial. Linear mixed-effects regression models were adjusted for important non-lifestyle factors then further adjusted for dietary and physical activity variables. In total, 91 adolescents were studied. Results: Each serving of total dairy ( β = −0.0054, P < 0.01), unflavored milk ( β = −0.012, P < 0.01), reduced fat ( β = −0.0078, P < 0.05), and low fat/fat-free products ( β = −0.0149, P < 0.01) was associated with a decrease in zBMI over 12 months. These associations were no longer significant after adjustment for other dietary and physical activity factors. Sugar-sweetened beverage intake was inversely associated with intake of total dairy ( β = −0.186, P = 0.001), unflavored milk ( β = −0.115, P = 0.003) and low fat/fat-free dairy ( β = −0.125, P = 0.001). Conclusions: Intakes of total dairy, unflavored milk, reduced fat dairy and low fat/fat-free dairy products are associated with improved obesity treatment outcomes among adolescents. This could be due to co-occurring healthy lifestyle behaviors or to replacement of other food and beverages associated with obesity, such as sugar-sweetened beverages, by dairy products.