The truth about eating eggs

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Are eggs helpful to our health… or a cause of heart disease? BBC Future examines the evidence.

If there was such a thing as a perfect food, eggs would be a contender. They’re readily available, easy to cook, affordable and packed with protein.

“The egg is meant to be something that has all the right ingredients to grow an organism, so obviously it’s very nutrient dense,” says Christopher Blesso, associate professor of nutritional science at the University of Connecticut in the US.

Eating eggs alongside other food can help our bodies absorb more vitamins, too. For example, one study found that adding an egg to salad can increase how much vitamin E we get from the salad.

But for decades, eating eggs has also been controversial due to their high cholesterol content – which some studies have linked to an increased risk of heart disease. One egg yolk contains around 185 milligrams of cholesterol, which is more than half of the 300mg daily amount of cholesterol that the US dietary guidelines recommended until recently.

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