Their options have expanded exponentially since the introduction of small bags of potato chips or pretzels for lunchboxes years ago.

WSJ: Overeating: The Psychology of Small Packages

In a four-hour masterpiece, Sale packed two ice cream sundaes and, by one teammate's estimate, around 30 bags of potato chips into one of the skinniest bodies the sport has ever seen.

WSJ: Chris Sale: Baseball's Greatest Metabolism

Nooyi, who says she rarely exercises, eats three small bags of Lay's potato chips a day.

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