Eggs are a rich source of cholesterol. This cholesterol is contained mainly in the yolk of the eggs. Some sources claim that consumption of eggs is associated with detrimental health effects because of the cholesterol within the eggs. However, the studies investigating the association between eggs consumption and detrimental changes to blood cholesterol levels are inconsistent. While many studies show that egg consumption may cause changes in blood lipid levels, many do not. These inconsistent results suggests that other variables, and not eggs, are the cause of the changes to cholesterol levels. For example, perhaps those that eat more eggs consume less fibre. As fibre is known to alter blood cholesterol levels, this could explain the changes. In a recent study, researchers investigated the association between egg consumption and blood cholesterol, blood glucose and insulin resistance in health adolescent girls, but found no association existed between these variables and consumption of eggs.
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