根据大小，一个鸡蛋大约有75卡路里的热量：45卡路里来自脂肪，25卡路里来自蛋白质、剩下的5卡路里来自碳水化合物。

Depending on the size, an egg is roughly 75 calories; 45 calories come from fat, 25 calories from protein, and 5 calories from carbohydrates.

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脂肪：一个鸡蛋中约60%卡路里来自于脂肪；鸡蛋蛋黄包含约10g脂肪。

Fat: about 60% of the calories in an egg come from fat; Chicken egg yolks contain about 10 grams of fat.

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脂肪：一个鸡蛋中约60%卡路里来自于脂肪；鸡蛋蛋黄包含约10g脂肪。

Fat: about 60% of the calories in an egg come from fat; Chicken egg yolks contain about 10 grams of fat.

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