It is commonly assumed that regular intake of alcoholic beverages in excess accentuates the risk for body weight gain and obesity. Researchers from the University of Navarra (Spain) prospectively evaluated the association between the type of alcoholic beverage intake and weight change in a Mediterranean cohort. They followed 9,318 adults without previous chronic disease for an average of 6.1 years. Validated data on diet including consumption of alcoholic beverages were collected at baseline. Weight was recorded at baseline and updated every 2 years during the follow-up period. After 6 years, 1006 incident cases of overweight/obesity were identified in participants with normal weight at baseline.
Source: Type of alcoholic beverage and incidence of overweight/obesity in a Mediterranean cohort: The SUN project. Sayon-Orea C, Bes-Rastrollo M, Nuñez-Cordoba JM, Basterra-Gortari FJ, Beunza JJ, Martinez-Gonzalez MA Nutrition. 2010 Dec 9.
The authors concluded that the type of alcoholic beverage can modulate the effect of alcohol intake on the risk of developing overweight/obesity.