Eggs are a good source of protein and other nutrients and can be part of a healthy dietary pattern. Animal products, including eggs, contain saturated fat, which can raise blood cholesterol. Too much bad (LDL) cholesterol in the blood can contribute to formation of plaque and narrowing of the arteries. All the saturated fat is in the yolk. Because egg yolks contain saturated fat, it may be appropriate for people who need to reduce LDL-cholesterol to reduce intake of egg yolks.