Men without diabetes could eat up to six eggs a week with no extra risk of death, Dr. Luc Djousse and Dr. J. Michael Gaziano of Brigham and Women's Hospital and Harvard Medical School found.
The study found that consumption of (seven or more) eggs a week was associated with a 23 percent greater risk of death. Among male physicians with diabetes, any egg consumption is associated with a greater risk of all-cause mortality, and there is suggestive evidence for a greater risk of MI (heart attack) and stroke.
Eggs are rich in cholesterol, which in high amounts can clog arteries and raise the risk of heart attack and stroke.
One expert on nutrition and heart disease said the study suggests middle-aged men, at least, should watch how many eggs they eat.
The Harvard team study involved 21,300 male doctors followed for 20 years, starting when they were about 54 years old, on average.
Every year during the study, the men noted their egg consumption, physical activity, smoking, alcohol use, consumption of vegetables and breakfast cereals, diabetes, high blood pressure, and use of aspirin.
Over 20 years, 1,550 of the men had heart attacks, 1,342 had strokes, and more than 5,000 died.
"Egg consumption was not associated with (heart attack) or stroke," the researchers wrote.
But the men who ate seven eggs a week or more were 23 percent more likely to have died during the 20-year period and diabetic men who ate any eggs at all were twice as likely to die in the 20 years.
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