Researchers at Pennsylvania State University found that hiding pureéd vegetables, what they call “stealth vegetables,” in entrées doubled participants’ fiber and reduced the number of calories each participant ate. Half the participants received dishes with hidden vegetable purée; those who ate meals with the hidden veggies consumed as much as 360 less calories per day and twice as many servings of vegetables. After the study, many were still skeptical. “It’s interesting that we have to go to such extents to get people to consume more vegetables,” says Purdue University nutrition professor Richard Mattes.
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