Are eggs good or bad for you? Most studies regarding the healthfulness of eggs have concluded that they’re soundly nutritious; however that notion does come with a couple of caveats. Citing a 2008 study published in The American Journal of Clinical Nutrition that observed 21,300 men over a 20-year period, Web MD writes, "After adjusting for other risk factors, men who reported eating seven or more eggs per week were 23 percent more likely to die of any cause during the study; the risk rose among those with diabetes." However, eating up to six eggs per week showed no increase in health risks.
Meanwhile, in January 2012, the Mayo Clinic’s Thomas Behrenbeck, M.D., Ph.D., responded to a question about how eggs affect cholesterol levels by saying, "Although eating too many eggs can increase your cholesterol, eating four egg yolks or fewer on a weekly basis hasn't been found to increase your risk of heart disease."