Cereal flake size influences calorie intake | Penn State University

People eat more breakfast cereal, by weight, when flake size is reduced, according to Penn State researchers, who showed that when flakes are reduced by crushing, people pour a smaller volume of cereal into their bowls, but still take a greater amount by weight and calories.

“People have a really hard time judging appropriate portions,” said Barbara Rolls, professor of nutritional sciences and Helen A. Guthrie Chair in Nutrition. “On top of that you have these huge variations in volume that are due to the physical characteristics of foods, such as the size of individual pieces, aeration and how things pile up in a bowl. That adds another dimension to the difficulty of knowing how much to take and eat.”

via Cereal flake size influences calorie intake | Penn State University.

Pretty good idea.  Cereal is hard to measure by volume.  You can weigh it instead and compare to the serving size on the package.

You’ll notice that for similar reasons, European recipes are frequently given by weight instead of by cup volume.  It’s more controlled, and if you have a food scale, it’s actually easier to measure that way.

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