The Washington Post, Is it what we eat? Or that we overeat? A look at the effort to figure out why we’re fat

Do we get fat because we overeat, or because of the types of food we eat? That’s the question posed by the Energy Balance Consortium Study, described by Sam Apple for Wired  magazine. Apple gives a fascinating picture of how the study was conducted: Two days a week, participants were locked into “tiny airtight rooms known as metabolic chambers,” where scientists calculated how many calories they burned by measuring changes in oxygen and carbon dioxide in the rooms’ air.

Their meals, delivered through vacuum-sealed portholes so researchers’ breath wouldn’t interfere with the measurements, were chemically analyzed to determine exact levels of carbohydrates, proteins and fats…

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