A muffin serving size is the size of a light bulb.

一份松饼是灯泡这么大。

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A reasonable sized bagel's serving size is the size of a hockey puck.

大小合理的百吉饼一餐份量应该是一只冰球大小。

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If you don't check the serving size, you could be eating double or even triple the calories you expected.

如果你不检查食用份量，你可能是在吃两倍或者甚至三倍你所期望的卡路里。

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A bagel, a reasonable sized bagel's serving size is the size of a hockey puck.

百吉饼,合理的一餐份量应该是冰球大小

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

A muffin serving size is the size of a light bulb.

一份松饼是灯泡这么大

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Cereal would be--a serving of cereal would be about the amount that would fit in a wine glass, but people think that you fill up a bowl and that becomes a serving, but a typical amount of cereal that people serve themselves might be two or three times what the ordinary size is.

这是一餐份量的麦片,放在酒杯里大概那么多,但人们认为满满一碗才是一份,人们通常所食用的麦片,是原来大小的二到三倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Lacking an exact definition of serving size, this rule could be easily manipulated.

FORBES: Should Little Caesars Be Forced to Tell Consumers How Many Calories Are in a Large Pizza?

Another nice feature is the ability to adjust the recipe's serving size and have the changes show up in your shopping list.

WSJ: Testing Grocery List Apps

It also lists valuable information like final serving size, nutritional information, the number of pans needed for each dish and the cost per serving.

FORBES: How to Cook for the Masses: 'The Lunch Box' Provides All the Tools