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Dairy Products May Lower Risk of Type 2 Diabetes in Men

Posted: Friday, May 20, 2005

Men who have a high dairy intake have a lower risk of type 2 diabetes, according to the results of a study. The editorialist reviews the purported benefits of milk and dairy products.

"Diet and lifestyle modifications can substantially reduce the risk of type 2 diabetes," write Hyon K. Choi, MD, from Massachusetts General Hospital in Boston, and colleagues. "While a strong inverse association has been reported between dairy consumption and the insulin resistance syndrome among young obese adults, the relation between dairy intake and type 2 diabetes is unknown."

The investigators prospectively examined the relationship between dairy intake and incident cases of type 2 DM in 41,254 male participants with no history of DM, cardiovascular disease, and cancer when enrolled in the Health Professionals Follow-up Study.

During 12 years of follow-up, there were 1,243 incident cases of type 2 DM. Dairy intake was associated with a modestly lower risk of type 2 DM. Compared with men in the lowest quintile of dairy intake, the relative risk (RR) for type 2 DM in men in the top quintile of dairy intake was 0.77 (95% confidence interval [CI], 0.62 - 0.95; P for trend = .003), after adjustment for body mass index (BMI), physical activity, dietary factors, and other potential confounders.

For each serving-per-day increase in total dairy intake, there was a 9% lower risk for type 2 DM. BMI did not affect this association. "Dietary patterns characterized by higher dairy intake, especially low-fat dairy intake, may lower the risk of type 2 diabetes in men," the authors write.

"Many of these components protect individuals from exogenous stresses, toxins, and pathogens; encourage adaptation to the environment; and promote metabolic regulation, while other milk components cause negative effects in susceptible individuals," Dr. King writes. "Research shows that the role of dairy foods in health is very complex and probably varies with the genotype and phenotype of the individual."

Source: Diabetes In Control.com