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19 January 2017updated 02 Aug 2021 10:30am

Why I refuse to swallow the “clean eating“ craze

Clean Eating – the Dirty Truth reveals the dodgy science behind the restrictive eating trend.

By Rachel Cooke

Some years ago, my sister fell seriously ill just as she was about to take her university finals. No one knew what was wrong, but we suspected – even if none of us dared to say the word aloud – that she had some form of cancer. How else to explain the vomiting and exhaustion, the pewter circles beneath her eyes? Many tests later, we learned the truth. She has coeliac disease. In the circumstances, this was wondrous news. All she had to do to be better was to give up gluten. In the years since, however, the sense of escape has gradually dimmed. What a pain it is. How lovely it would be for her to be able to scoff a bowl of proper pasta, to demolish a pizza along with everyone else.

It’s thanks to my sister that my tolerance for the swollen ranks of the gluten-free brigade is even lower than it might ordinarily be (which is to say, about as low as the Dead Sea, and then some). Coeliac disease is not a fad but a lifelong autoimmune disorder affecting 1 per cent of the population. It is exasperating to have to listen to non-sufferers spouting so much pseudo­science on the matter of gluten – lies and half-truths out of which some of them are making a great deal of money – though if there’s one thing that is more exasperating, it’s those same people refusing to explain themselves when confronted with expertise.

In Clean Eating – the Dirty Truth, (19 January, 9pm), a Horizon film presented by Dr Giles Yeo, a scientist at Cambridge University’s Metabolic Diseases Unit, the Hemsley sisters, Jasmine and Melissa, who eschew not just gluten but grains in their bestselling cookery books, were notable by their absence, having declined to appear. As Yeo tossed bones into a pan of simmering water, preparing to make their broth (“the ultimate superfood”), my blood was already boiling. What’s wrong, girls? Lost your nerve?

Yeo’s film, righteous and entertaining (if not, perhaps, sufficiently savage), took as its starting point the broad idea – promoted by the Hemsleys, among others – that while some foods aid “wellness”, others actively make us ill. The beauty of this open-ended approach was that it allowed him to show that clean eating is merely one end of the 21st-century food fad spectrum. At the other can be found people such as Robert O Young, who believes that alkaline foods can cure terminal diseases.

A one-time Mormon missionary, last year Young was convicted by an American court of practising medicine without a licence; as Yeo also revealed, in 2010, he charged a young British woman, Naima Mohamed, $77,000 for a stay at his “miracle” ranch in California not long before she died from breast cancer. The two ends of the spectrum are not unconnected. It was Young, for instance, who inspired the alkaline eating “revolution” of Natasha Corrett of the successful Honestly Healthy website. She, too, preferred not to appear in Yeo’s documentary.

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The film built from sceptical jauntiness to what seemed to me to be a rather careful anger (perhaps the lawyers had been at it). One clean-eating star who did agree to meet Yeo was “Deliciously” Ella Woodward (now Mills), and with her help, he made a sweet potato stew, a photo of which he then uploaded to Instagram (social media and clean eating go together like linguine and crab).

But thereafter, he got out of the kitchen and on to a plane, eager to dismantle the diktats not only of Young, but also of his compatriots William Davis (the Hemsleys’ guru), a former cardiac doctor who believes that all human beings should give up wheat, and Colin Campbell, who advocates an entirely plant-based diet (Mills read Campbell’s bestseller The China Study before embarking on her own experiments).

Skilfully, Yeo queried the scientific evidence for these people’s claims and, in the case of Young, revealed his sweaty charlatanism. It was all rather, well, delicious, though I wanted more. Restricted by time and format, Yeo could not take the next step. What the rest of us need to do now is to call out the publishers and newspaper editors who enthusiastically peddle the diets of Ella and co, seemingly without recourse even to the most basic kind of fact-checking. 

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This article appears in the 18 Jan 2017 issue of the New Statesman, The Trump era