Whole Foods’ original founder and former co-CEO John Mackey, now 65, grew up eating cocoa puffs for breakfast, a hamburger for lunch and boxed macaroni and cheese for dinner, he tells host Guy Raz on the NPR show, “How I Built This.” He didn’t start to understand that there was a value in eating a vegetable-based, healthy diet until he moved into a vegetarian co-op, when he was 23, which, at the time, he thought of as an adventure.

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