Martins Maylla LB , Kac G , Silva RA , Bettiol H , Barbieri MA , Cardoso VC , Silva Antonio AM - 46127 N - Nutrition 2015 ; in press.

Dairy consumption is associated with a lower prevalence of Metabolic Syndrome among young adults from Ribeirão Preto, Brazil

Objective  A greater dairy consumption has been suggested to be a factor contributing to a lower prevalence of metabolic syndrome (MS) due to the possible actions of some milk nutrients. However, results remain controversial. The association between dairy consumption and MS and its components has been investigated.
Methods Dairy consumption and biochemical and anthropometric parameters were determined in 2031 young adults aged 23 to 25 years. Food consumption was assessed using a Food Frequency questionnaire. The estimated habitual portion of dairy products consumed daily was divided into quintiles. The criteria of the International Diabetes Federation (IDF) and of the Joint Interim Statement (JIS) were used for the classification of MS. Non-adjusted and adjusted Odds Ratios (OR) were estimated by logistic regression.
Results The prevalence of MS was 11.9% by the IDF criteria and 9.0% by the JIS criteria. A greater dairy consumption was associated with a lower prevalence of MS according to both criteria; IDF (OR = 0.61, 95% CI 0.38-0.97) and JIS (OR = 0.62, 95% CI 0.39-0.98) when the last quintile was compared to the first one. The association persisted in the model adjusted for demographic, socioeconomic, dietary and life style variables according to the IDF (OR = 0.53, 95% CI 0.30-0.93) and was borderline according to the JIS (OR = 0.59, 95% CI 0.34-1.00), but lost significance when data were adjusted for calcium in both models.
Conclusions A greater dairy consumption is associated with a lower prevalence of MS, with calcium probably being the nutrient responsible for this association.
Highlights     •Association between dairy consumption and metabolic syndrome remains controversial     •This association has been investigated in 2031 young adults from Brazil     •Greater dairy consumption was associated with lower prevalence of metabolic syndrome     •The association lost significance in a model adjusted for calcium intake     •This suggests that calcium is the nutrient responsible for this association