The Association between Milk Intake and Vitamin D Status in Adolescent Girls: Research Article

Laughlin A, Schwartz M, Lappe J

Background: Sufficient vitamin D and calcium intake are essential for optimal bone health but vitamin D is gaining attention as being linked to other health benefits. The purpose of this analysis was to evaluate the relationship between milk intake and serum vitamin D levels in a cohort of adolescent girls. Methods: A cross-sectional analysis of 124 adolescent girls was done using t-tests to compare the differences between the control and dairy groups and multiple linear regression was used to investigate predictors of serum vitamin D. Results: More than half girls (58%) had deficient vitamin D levels and nearly 20% were considered insufficient. Within the overall regression model, milk intake was not statistically significant in predicting serum 25(OH)D, however, Body Mass Index (BMI), race, and season were all statistically significant predictors. Conclusion: In this cohort, as in other studies, milk drinking was not associated with higher serum 25(OH)D levels in adolescent girls. For adolescents to achieve adequate serum levels and health benefits, providers need to evaluate individual vitamin D levels. For those with low levels, additional education and/or supplementation may be needed.

 
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