Study Title:

Snacking, Skipping Breakfast, Risk of Type 2 Diabetes

Study Abstract

BACKGROUND:
Little is known about the association between eating patterns and type 2 diabetes (T2D) risk.

OBJECTIVE:
The objective of this study was to prospectively examine associations between breakfast omission, eating frequency, snacking, and T2D risk in men.

DESIGN:
Eating patterns were assessed in 1992 in a cohort of 29,206 US men in the Health Professionals Follow-Up Study who were free of T2D, cardiovascular disease, and cancer and were followed for 16 y. We used Cox proportional hazards analysis to evaluate associations with incident T2D.

RESULTS:
We documented 1944 T2D cases during follow-up. After adjustment for known risk factors for T2D, including BMI, men who skipped breakfast had 21% higher risk of T2D than did men who consumed breakfast (RR: 1.21; 95% CI: 1.07, 1.35). Compared with men who ate 3 times/d, men who ate 1-2 times/d had a higher risk of T2D (RR: 1.25; 95% CI: 1.08, 1.45). These findings persisted after stratification by BMI or diet quality. Additional snacks beyond the 3 main meals (breakfast, lunch, and dinner) were associated with increased T2D risk, but these associations were attenuated after adjustment for BMI.

CONCLUSIONS:
Breakfast omission was associated with an increased risk of T2D in men even after adjustment for BMI. A direct association between snacking between meals and T2D risk was mediated by BMI.

Study Information

Mekary RA, Giovannucci E, Willett WC, van Dam RM, Hu FB.
Eating patterns and type 2 diabetes risk in men: breakfast omission, eating frequency, and snacking.
American Journal of Clinical Nutrition
2012 March
Departments of Nutrition and Epidemiology, Harvard School of Public Health, Boston, MA.

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