Dr. Greenberg’s main interest is in the role of behavioral factors, including diet and body weight, in the prevention of serious chronic illness.

His present objective is to help build the body of empirical evidence needed to establish an appropriate role for chocolate and flavanols in preventing illness. This focus will involve epidemiological studies and randomized clinical trials on the effects of chocolate and flavanol consumption on the risk of cardiovascular disease, cancer, diabetes and adiposity.

His past work has included epidemiological and intervention studies aimed at exploring the effects of coffee and caffeine intake, body weight and blood pressure on the risk of conditions such as diabetes, heart disease and heart valve disease.

He has also performed a number of analyses aimed at uncovering the effects of statistical biases and intra-individual variation on the association between body weight and mortality.