It's just like potato chips.

WSJ: Overeating: The Psychology of Small Packages

Former Wal-Mart executive Brian Cornell will rejoin Pepsi to run Americas Food, which includes household staples like Lays potato chips and Doritos tortillas.

FORBES: Pepsi Shuffles Executive Line-Up, Taps Wal-Mart Vet To Run U.S. Food

For a packet of potato chips like these, 75 grams of CO2 was emitted for these products.

NPR: Taking a Practical Approach to 'Green' Living

Meanwhile, PepsiCo CEO Indra Nooyi has been criticized for trying to move the company toward healthy snacks, like Quaker granola bars and baked Frito-Lays potato chips, and away from its soda lines.

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Some of the volunteers were asked to imagine eating the potato chips in the future and to predict how much they would like them.

FORBES