For the study, the researchers looked at data from two completed randomized trial involving 20,703 men from Physicians' Health Study I (1982 to 2007) and 36,295 women from the Women’s Health Study (1992-2007).
Men and women were followed up for 20 years and about 12 years respectively. During the follow-ups, 1,921 men and 2,112 women developed type 2 diabetes.
It was found that men who ate less than 1, 1, 2 to 4, 5 to 6, and more than 7 eggs per week were 9, 9, 18, 46 and 58 percent more likely to develop type 2 diabetes respectively.
For women, the risk of diabetes was increased by 6,-3, 19, 18 and 77 percent respectively.
The researchers concluded that "these data suggest that high levels of egg consumption (daily) are associated with an increased risk of type 2 diabetes in men and women."
Source: Djoussé L, Gaziano JM, Buring JE, Lee I. and risk of type 2 diabetes in men and women. Diabetes Care. Published online ahead of print November 18, 2008. DOI: 10.2337/dc08-1271.