The effects on the cholesterol and fatty acid contents of eggs by the usual cooking procedures were investigated. Both contents were not significantly reduced by wet-cooking procedures such as boiling, poaching, pot-steaming, and making into egg soup. With the dry-cooking procedures, omelet using beaten eggs absorbed cooking oil, while frying and deep-frying, not using beaten eggs, significantly reduced the cholesterol inside the egg yolk membrane. In doughnuts, the efflux of cholesterol from the egg to the cooking oil was at least 32%. These results suggest that nutritional education/management focusing on the cholesterol content of egg dishes is important.