“Just try to explain to anyone the art of fasting,” says the title character in Kafka’s short story “A Hunger Artist.” “Anyone who has no feeling for it cannot be made to understand it.” The emaciated circus freak is right: refusing food at the expense of bodily function is not an easy addiction to convey.

Ginia Bellafante put it well a few years ago, in a book review for the New York Times: “Anorexia is a disease of contradiction: it demands both discipline and indulgence …. The anorexic disappears in order to be seen; she labors to self-improve as she self-annihilates.” Bellafante describes the condition as “an intellectualized hallucination.” That concise definition is better than any I’ve read, and it points to the conflicted way in which we talk about the disease: our intention is critical, but our language is celebratory.

In “How to Disappear Completely: On Modern Anorexia,” Kelsey Osgood parses these paradoxes by looking critically at the writings of and about anorexics. Her project is a contrarian one: to expose the hypocrisy of “treatment texts,” the pseudo-redemptive memoirs written in the past tense by those who see themselves as recovered. She believes that praise of such authors, who are often called rigorously honest and selflessly brave, is naïve, maybe even willfully so: in reality, their books do little more than teach readers to diet and think of anorexia as an aspirational illness. It’s a good point, and, coming from somebody who spent a decade in and out of hospitals and on the brink of death, one that should be taken seriously. Osgood “contracted” the disease as a teen-ager by copying the habits of anorexics, using books that purported to be recovery-oriented “didactically, as diet manuals.” She remembers thinking of anorexia not as an illness “but rather as the most logical progression of self-control.”

Osgood can now see the flaw in this rationale, and she aims to expose it. There is nothing controlled about anorexia. It’s an addiction, though the only one I can think of where a person is dependent on the absence of something. A starving body produces endorphins to counteract a frozen metabolism; the heart rate slows; the body temperature lowers. This accounts for the “high” that anorexics routinely cite. But the addiction quickly becomes behavioral, too. The anorexic’s chronic renunciation—her “pure defiance,” to quote Osgood—makes for a truly delusional, almost Dickensian world view, wherein people’s inner qualities correlate to their physical attributes. Unlike other kinds of addictions, anorexia disguises itself as virtue. The anorexic is a modern-day phrenologist, searching for saintliness and vice in the bone structure of strangers. She is at once insane, dying, and inhumane.

Osgood is angry about this, and her anger drives her to eloquent polemic: “We make anorexia desirable by connecting it to brilliants and also by talking about it poetically, by making it something that enhances a person’s aura, makes them more glamorous,” she writes. “The person writing about his or her own struggle fuels the fire by producing a long, hubristic poem, an elegy, an ode to a presence gone and missed.” The glamorizing language used to describe the disease predates its naming, in 1873. Academics have argued that Melville’s Bartleby—“so thin and pale”—is anorexic, a diagnosis that explains the scrivener’s subsistence on the rare, hand-delivered “ginger-nut,” as well as his maddening passivity. Jane Eyre, “delicate and aerial,” refuses to eat in front of Rochester; Elizabeth Gaskell repeatedly insists that Ruth’s figure is “little” or “beautiful lithe.” In Goethe’s “Elective Affinities,” the young Ottilie moves silently, with “perpetual exquisite motion,” and practices “excessive abstemiousness in eating and drinking”; eventually, she dies.

But Osgood is referring to contemporary literature. Modern books about anorexia are almost exclusively written in the first person—they’re either memoirs or young-adult novels that take the form of intimate, florid monologues. Francesca Lia Block, a kind of patron saint of fictional “thinspiration,” writes laughably elliptical passages that read like demented ads for diamonds or bottled water: “I will be thin and pure like a glass cup. Empty. Pure as light. Music.” If there is any truth-value to this kind of delicate and “poetic” prose, it’s in the fragmentary elisions—not a bad representation of an anorexic’s blinkered but confident thoughts, actually. Marya Hornbacher’s “Wasted,” a smart, self-aware, Pulitzer Prize-nominated memoir, published in 1996, when Hornbacher was twenty-two, is full of similarly bewitching language. “We turn skeletons into goddesses and look to them as if they might teach us how not to need,” she writes. “You feel like an ice cube. You feel like you’re naked and have fallen through thin ice on a lake and are drowning in the ice water underneath. You can’t breathe.”

Osgood does not want to write a long, hubristic poem, and she believes that sentences like the ones above are deplorable on both aesthetic and ethical grounds. But not wanting to connect your illness to your own brilliance is nearly impossible if you also want to be a precise, smart, and beautiful writer, which Osgood is. She quotes Nietzsche, Lacan, and Feuerbach, and uses words like “gossamer” and “ethereal.” Well-versed in rehab best practices—“details are venomous to this work”—Osgood does not provide numbers to illustrate how malnourished she became (no calorie intake, no lowest weight), but she still manages to romanticize the disease, unintentionally, by way of her own felicity with words. The “pro-ana” movement, she writes, “is a kind of nebulous death cult in which every member is his or her own personal and omniscient demagogue.” The disease itself is the “permanent chill from getting too close to death, from inviting it in.” Even when Osgood is taking the disease’s literature to task, she succumbs to exactly the qualities she reviles. “We attempt to debunk the myths of anorexia by couching its intricacies and impurities in pretty language that describes a graceful kind of suffering, a spiritual kind,” she writes. “It is a rapturous lingo, a linguistic stone’s throw from the beatific.”

Of course any book that tries to capture some of the strange euphoria that attends addiction must make it sound appealing, at least when the writer is discussing the manic highs and fiendish dedication of its early throes. But there’s a difference: nobody wants to be an alcoholic, nobody wants to one day attend Narcotics Anonymous meetings. “I watched with glee as my collarbone emerged from the flesh of my chest,” Osgood remembers. There is no parallel recollection for any other sort of addict. Nobody writes that they watched with glee as their track marks materialized on their forearms or as their family members one by one gave up on them.

Osgood’s project, then, seems doomed: any writing about anorexia makes it more interesting than it really is—even a book that sets out to condemn the very act. Much as she protests, it’s clear from the way Osgood writes that the disease still excites her. In this sense, the book is an incredibly realistic portrayal of anorexia, which is all but predicated on the delusion that it is exciting.

I subsisted for an entire year of college on lettuce, nonfat yogurt, pickles, an overpriced and hard-to-find kind of low-calorie noodle, and baroque puddings involving canned pumpkin and expired spices. When I wasn’t preparing meagre (and in retrospect disgusting) meals for myself, I was doing truly disturbed things: purposefully “forgetting” books at the library so that I would have to walk back and get them, unconsciously flipping over boxes of inedible items (pens, soap) because I was so accustomed to looking at nutritional labels, doing homework in the gym’s sauna fully clothed because it was the only way that I could get warm. I can barely bring myself to think about this time, not because it depresses me but because it’s so utterly dull. Those foods and bizarre behaviors are infinitely more alluring listed out than they were to consume or perform. Even writing this bores me, and if there weren’t some tiny, tiny part of me that wishes I were still sick I would have never wanted to do it.