For more than 50 years, eggs have been called unhealthful because they are among the foods that contain the highest levels of cholesterol. However, in recent years eggs have been rehabilitated. In Bangkok, a team of researchers at Mahidol University showed that adding an egg a day to the diets of healthy people in Thailand raised the good HDL cholesterol that prevents heart attacks. It did not affect the bad LDL cholesterol or triglycerides.
Adding as many as three eggs per day to your diet will not raise cholesterol. More than 80 percent of the cholesterol in your body is manufactured by your liver, and less than 20 percent comes from the food you eat. When you eat more cholesterol, your liver makes less. When you eat less cholesterol, your liver makes more. However, if you add eggs you must subtract another equal source of calories, because increasing caloric intake will raise cholesterol. So this is not an invitation to eat an unlimited amount of eggs. The study supports other research showing that eggs in moderation are not harmful, and that up to one egg a day may have specific health benefits.
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