Background/objectives: It has been postulated that higher dairy consumption may affect blood pressure regulation. The aim of this study was to examine the association between dairy consumption and blood pressure in mid-childhood. Methods: Subjects (n=335) were participants of a birth cohort at high risk of asthma withinformation on diet at 18 months and blood pressure at 8 years. Multivariate analyses were used to assess the association of dairy consumption (serves) and micronutrient intakes (mg) at 18 m with blood pressure at 8 y. In a subgroup of children (n=201), dietary intake was measured at age 18 m and 9 y which allowed for comparisons of blood pressure of those who consistently consumed at least two dairy serves per day versus those who did not. Results: Children in the highest quintile of dairy consumption at 18 months had lower systolic blood pressure (SBP) and diastolic blood pressure (DBP) at 8 years (2.5 mm Hg, P=0.046 and 1.9 mm Hg, P=0.047; respectively) than those in the lowest quintiles. SBP was lowest among children in the highest quintiles of calcium, magnesium and potassium intakes. Significant negative linear trends were observed between SBP and intakes of dairy serves, calcium, magnesium and potassium. Furthermore, SBP and DBP were lowest in the group of children that consumed at least two dairy serves at both 18 months and 9 years, compared to all other children (SBP 98.7 vs 101.0 mm Hg, P=0.07; and DBP 56.5 vs 59.3 mm Hg, P=0.006; respectively). Conclusions: These results are consistent with a protective effect of dairy consumption in childhood on blood pressure at age 8 years.
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Rangan, A. M., Flood, V. L., Denyer, G., Ayer, J. G., Webb, K. L., Marks, G. B., Celermajer, D. S. & Gill, T. (2012). The effect of dairy consumption on blood pressure in mid-childhood: CAPS cohort study. European Journal of Clinical Nutrition, 66 (6), 652-657.