People who shop in health food stores never look healthy.

Sedaris’s line is a deadpan inversion of the promise implied by “health food.” By claiming that health-food shoppers “never look healthy,” she punctures the marketing aura around wellness culture and highlights the gap between aspiration and appearance. The joke also plays on the human tendency to judge health visually—an unreliable habit that can slide into stereotyping. As comedy, it works through exaggeration and contrarian certainty (“never”), suggesting that the pursuit of purity, supplements, and dietary rules can read as anxious or self-denying rather than vibrant. The broader implication is skeptical: “healthy” is often a consumer identity, not a straightforward, observable state.