Although eggs are high in cholesterol, they don't increase the risk of stroke, even if you eat one every day for 21 years, say researchers who tracked the diets of 1,950 healthy men for that length of time.
What was surprising was that the eggs don't even increase the risk of stroke in people carrying the APOE4 gene—common in Finland where the study took place—which changes the way that dietary cholesterol is processed. Carriers of the gene have been advised to eat low-fat foods because they pose a much higher risk of stroke for them.
During the 21 years of the study, 217 men suffered a stroke—but there was no correlation between the condition and the number of eggs they ate, say researchers from the University of Eastern Finland.
Although a standard egg contains 200 mg of cholesterol, it didn't affect cardiovascular health, although the researchers say they don't know for sure what effects, if any, eating more than one egg a day would have.