A couple months ago, I consumed around 8 eggs a day for several months. This was largely based on research from the Paleo Diet arguing that saturated fats and cholesterol wasn't nearly as bad for you as nutritional advice would suggest.
A study, however, came out recently claiming that eggs were as bad for you as smoking:
Researchers from Western University in Canada examined over 1,200 men and women to come to the conclusion that regularly eating egg yolks was two-thirds as bad as smoking when it comes to carotid plaque in the arteries, a known risk factor for stroke and heart attack.
Some aggressive lines from a paper by J.D. Spence, D.J. Jenkins, J. Davignon, "Dietary cholesterol and egg yolks: not for patients at risk of vascular disease", Can J Cardiol, 26 (2010), pp. e336–e339
Although some studies showed no harm from consumption of eggs in healthy people, this outcome may have been due to lack of power to detect clinically relevant increases in a low-risk population. Moreover, the same studies showed that among participants who became diabetic during observation, consumption of one egg a day doubled their risk compared with less than one egg a week.
What does the research say on the health impacts of consuming several eggs a day?