這篇文章我翻譯自Mayoclinic網站，下麵是鏈接和原文。
雞蛋是高膽固醇食物，而高膽固醇食物會引起高膽固醇血脂。不過，飲食中膽固醇含量究竟應該控製在什麽水平，必需考慮個體差異。盡管雞蛋吃多了會升高膽固醇，一般來說，每周食用四個或者四個以下蛋黃，沒有發現會增加心血管疾患。
當你考慮是否應該在飲食中包括雞蛋時，應該考慮目前推薦的飲食中的總膽固醇量。
健康人群每日飲食膽固醇推薦量是小於300毫克；
對於有心血管疾患，糖尿病，高LDL人群，推薦量是每日小於200毫克。
一個大號雞蛋的膽固醇含量是186毫克，全部在蛋黃裏。如果你進食雞蛋，一定注意限製當日飲食中其它來源的膽固醇，最好用蔬菜替代肉食和其它高脂肪食物。
如果你需要雞蛋，但是想避免膽固醇，可以食用雞蛋白，這些雞蛋白或者由此加工的食物，不含有膽固醇。
http://www.mayoclinic.com/health/cholesterol/HQ00608
Chicken eggs are high in cholesterol, and a diet high in cholesterol can contribute to high blood cholesterol levels. However, how much the cholesterol in your diet can increase your blood cholesterol varies from person to person. 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.
When deciding whether to include eggs in your diet, consider the recommended daily limits on cholesterol in your food:
- If you are healthy, it's recommended that you limit your dietary cholesterol to less than 300 milligrams (mg) a day.
- If you have cardiovascular disease, diabetes or a high low-density lipoprotein (LDL, or "bad") blood cholesterol level, you should limit your dietary cholesterol to less than 200 mg a day.
One large egg has about 186 mg of cholesterol — all of which is found in the yolk. Therefore, if you eat an egg on a given day, it's important to limit other sources of cholesterol for the rest of that day. Consider substituting servings of vegetables for servings of meat, or avoid high-fat dairy products for that day.
If you like eggs but don't want the extra cholesterol, use only the egg whites. Egg whites contain no cholesterol. You may also use cholesterol-free egg substitutes, which are made with egg whites
