The Farrellys' characters (theoretically, anyway) view boogers as Lays potato chips -- nobody can eat just one.

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Subway has taken such a stealth-health approach with its combo meals, which offer, for example, a sandwich, Coke Zero, and baked Lays potato chips.

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

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Lays Potato Chips recently launched a Facebook contest asking U.S. fans to help create its next chip flavor for its 75th anniversary next year.

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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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How it worked: The researchers inserted brightly colored chip markers into specially designed tubes of Lays Stackables potato chips at regular intervals to indicate portion sizes.

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