Dairy product consumption and risk of type 2 diabetes in an elderly Spanish Mediterranean population at high cardiovascular risk Academic Article uri icon

abstract

  • The possible effects of dairy consumption on diabetes prevention remain controversial. The aim of this study was to investigate the association between the dairy consumption and type 2 diabetes (T2D) risk in an elderly Mediterranean population at high cardiovascular risk.We prospectively followed 3,454 non-diabetic individuals from the PREDIMED study. Dairy consumption was assessed at baseline and yearly using food frequency questionnaires and categorized into total, low-fat, whole-fat, and subgroups: milk, yogurt, cheeses, fermented dairy, concentrated full fat, and processed dairy. Hazard ratios (HRs) were calculated using Cox proportional hazards regression models.During a median follow-up of 4.1 years, we documented 270 incident T2D cases. After multivariate adjustment, total dairy product consumption was inversely associated with T2D risk [0.68 (95% CI 0.47-0.98); P-trend = .040]. This association appeared to be mainly attributed to low-fat dairy; the multivariate HRs (95% CIs) comparing the highest versus the lowest tertile consumption were 0.65 (0.45-0.94) for low-fat dairy products and 0.67 (0.46-0.95) for low-fat milk (both P-trend <.05). Total yogurt consumption was associated with a lower T2D risk [HR 0.60 (0.42-0.86); P-trend = .002]. An increased consumption of total low-fat dairy and total yogurt during the follow-up was inversely associated with T2D; HRs were 0.50 (0.29-0.85), 0.44 (0.26-0.75), and 0.55 (0.33-0.93), respectively. Substituting one serving/day of a combination of biscuits and chocolate and whole grain biscuits and homemade pastries for one serving/day of yogurt was associated with a 40 and 45% lower risk of T2D, respectively. No significant associations were found for the other dairy subgroups (cheese, concentrated full fat, and processed dairy products).A healthy dietary pattern incorporating a high consumption of dairy products and particularly yogurt may be protective against T2D in older adults at high cardiovascular risk.

authors

  • Díaz-López, A
  • Bulló, M
  • Martinez-Gonzalez, Miguel
  • Corella, D
  • Estruch, R
  • Fitó, M
  • Gómez-Gracia, E
  • Fiol, M
  • García de la Corte, FJ
  • Ros, E
  • Babio, N
  • Serra-Majem, L
  • Pintó, X
  • Muñoz, MÁ
  • Francés, F
  • Buil-Cosiales, P
  • Salas-Salvadó, J

publication date

  • 2016

has subject area