By Martha RosenbergIn 2008, the American Heart Association’s journal Circulation reported that just one egg a day increased the risk of heart failure in a group of doctors studied. And in 2010, the Canadian Journal of Cardiology lamented the “wide- spread misconception . . . that consumption of dietary cholesterol and egg yolks is harmless.” The article further cautioned that “stopping the consumption of egg yolks after a stroke or myocardial infarction [heart attack] would be like quitting smoking after a diagnosis of lung cancer: a necessary action, but late.”Damage to the heart isn’t the only health risk from eating eggs. According to studies in the journals Nutrition and Diabetes Care, eating eggs is “positively associated” with the risk of diabetes.As if that isn't enough, eggs also have a link to ovarian cancer, says an article in Cancer Epidemiology, Biomarkers & Prevention. The culprit is not necessarily just cholesterol. “It seems possible that eating eggs regularly is causally linked to the occurrence of a proportion of cancers of the ovary, perhaps as many as 40 percent, among women who eat at least 1 egg a week,” wrote the authors. In one study the article cites, three eggs per week increased ovarian-cancer mortality three-fold, compared with less than one egg per week.One of the reasons people still think of eggs as healthful is because they are promoted by Big Ag and the egg industry to both the medical and consumer press. For example, a 2010 egg industry–sponsored supplement in Canadian Family Physician found that “consumption of up to seven eggs per week is congruent with a healthy diet,” and questioned the cholesterol/cardiovascular disease link. The chicken egg has the highest cholesterol of any other foodstuff—packing approximately 275 mg of cholesterol which is more than one day’s worth). Cynics might observe that the tobacco industry also downplayed the cigarette/lung cancer connection.A blurb in Akin’s Healthy Edge® magazine says, “In the past, eggs have been condemned as unhealthy because their yolks contain cholesterol. But studies from around the world show that the cholesterol found naturally in food isn’t actually harmful, according to research presented at the Experimental Biology 2011 conference in Washington, DC. Unlike our government, health agencies in Europe and Canada don’t recommend limits for dietary cholesterol.”In 2010, US egg farmers in conjunction with Scholastic rolled out the “Good Egg Project” in schools to increase egg demand. It was similar to the dairy industry's "Got Milk" mustache campaigns in schools which pretend milk is a diet food and not fattening.  The “Back-to-Breakfast Teacher Challenge” bribed teachers by giving them a chance to win $5,000 by explaining in an essay how the Good Egg Project grant “could be used to offer protein breakfasts in their schools.”Most people are now aware of the cruel conditions that laying hens live in, too. While there has been some effort to improve their conditions with new laws that will go into effect, hens continue to be debeaked so they do not peck each other and crammed into wire cages with less than 67 square inches allotted to each hen for their entire lives.United Egg Producers (UEP), the trade group that represents 85 percent of US egg producers and 180 egg farms, admits in its own guidelines that debeaking causes “acute pain, perhaps constant pain and stress,” and other “welfare disadvantages,” like bleeding and dehydration. This cruel way of producing a cheap egg is another reason so say no to eggs.Martha Rosenberg is the author of the book: 

Born With a Junk Food Deficiency: How Flaks, Quacks, and Hacks Pimp the Public Health