An alternative to the Kyoto Protocol? Photo: Breville USA / Flickr
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Study finds broccoli-sprout juice helps the body flush carcinogens (but don't call it a "detox")

New study suggests broccoli-sprout beverages help the body detoxify airborne pollutants, though it's not quite a "detox".

It’s hard to avoid health fads. It took Google just ten minutes since I read this study in Cancer Research Prevention to begin bombarding me with adverts. ‘7lbs in 7 days Juice Diets‎’ and ‘Coreflush colon cleanses’ are just some of the regimes proclaiming salvation from ill health, but nothing gets pushed as much as the detox. According to The Internet, the detox diet might as well have descended from Heaven as it's so effective at solving everything from bad breath to erectile dysfunction.

This latest obsession with internal body cleansing has flourished over the last couple of decades. The diet industry, of which detox plays an important role, is rapidly expanding. It’s already worth tens of billions of dollars, despite coming under severe criticism from leading scientists. Author and blogger Dr. Ben Goldacre – famous for calling out examples of ‘bad science’ – once described detox as “meaningless, symbolic, gimmicky short-lived health gestures with a built-in expiry date”. Yet this doesn’t stop the media touting every new superfood or miracle-diet as a panacea for all our ills. News outlets pounce at the first sign of a study purporting to have identified a medical breakthrough, often misrepresenting the author’s original findings in order to grab flashy headlines. (Take a quick look at the A-Z of things the Daily Mail thinks will cause and cure cancer – broccoli has 14 entries).

The trick is not to get carried away by the hype. Look at this latest study. Researchers in the US and China have found broccoli-sprout juice appears to "remove" airborne pollutants from the body, but this isn't a "detox". Unlike the fleeting 'cleanse-your-body-in-5 days' type programmes (which unsurprisingly peak after the Christmas holidays), this research looked at the effects of longer-term consumption of broccoli-sprout juice on removing three specific carcinogens.

In the randomised-study of 291 participants from a highly polluted township in rural China, the team analysed daily urine samples from two groups: the first group was given a daily drink of broccoli-sprout juice, but the others were given a placebo beverage. The multi-institutional collaboration included researchers from the John Hopkins Bloomberg School of Public Health and the Qidong Liver Cancer Institute. The team were looking at how the levels of three carcinogens – benzene, acrolein, and crotonaldehyde – changed in participants’ urine over the three-month period.

The substances involved have been linked to increased risk of cardiopulmonary disease, arguably the second biggest killer in China. As the township in the study is located in the heavily-polluted Yangtze River Delta region (a tiny area of eastern China responsible for a monstrous 15 per cent of the country’s greenhouse gas emissions) there is a huge need to combat the dangers of air pollution.

Did the concoction work? On the face of it, yes. The authors found that juice-drinkers excreted more pollutants than the control group. In particular, they noted:

Rapid and sustained, statistically significant (p ≤ 0.01) increases in the levels of excretion of the glutathione-derived conjugates of benzene (61 per cent), acrolein (23 per cent), but not crotonaldehyde were found in those receiving broccoli sprout beverage compared with placebo.”

So far so good. Juice-drinkers weed out larger quantities of two of the three substances under consideration - but this still doesn’t mean broccoli-sprout juice “prevents against lung and heart disease”, as it might have you believe. 

The big question here – does drinking broccoli-sprout juice decrease your risk of disease by causing you to excrete higher levels of carcinogens? – needs lots more research. Without analysing numerous studies alongside one another (and taking sample size into account) you can’t really draw conclusions. A single study of 300 people is evidently not enough to justify claims of preventing lung cancer.

In an article published in The Journal of the American Medical Association, health-policy expert Dr John Ioannidis famously argued that a large amount of research is highly misleading. By comparing publications of “highly cited original clinical research studies” with subsequent papers where a larger sample size was used, he found a third of effectiveness claims to be either contradicted or highly exaggerated. Taking a single study to be gospel truth is foolish.

Let's go back to the broccoli. Research emerges linking this juice with enhanced excretion of pollutants; other studies have already linked those same pollutants to cancer. Extrapolating those statements to claim detoxing with broccoli-sprout juice will prevent disease is understandable, and perhaps even inevitable, but undeniably wrong. We mustn't connect dots to form patterns that aren't there.

This highlights a real problem with the supposed 'science' behind detoxing and other miracle-cures: subtly inviting us to form our own conclusions from the selective evidence they present, which, without comparative studies, is effectively meaningless. In detox diets this manifests itself by ignoring the body's own capabilities for disposing of toxins. Andrew Wadge, former Chief Scientist at the Food Standards Agency, expressed his scepticism that we need extra help cleansing out our insides:

There's a lot of nonsense talked about 'detoxing' and most people seem to forget that we are born with a built-in detox mechanism. It's called the liver. So my advice would be to ditch the detox diets and supplements and buy yourself something nice with the money you've saved.”

However, this doesn't mean we should automatically write off such supplements as useless. Given how few of us get our 5-a-day, you could argue that any initiatives promoting increased consumption of vegetables could only be a good thing. Co-author of the broccoli-juice paper Dr. Thomas Kensler tentatively suggested their findings could be used on a personal level, alongside state measures to improve quality of air.

This study points to a frugal, simple and safe means that can be taken by individuals to possibly reduce some of the long-term health risks associated with air pollution.

This while government leaders and policy makers define and implement more effective regulatory policies to improve air quality.”

Though Kensler might be over-estimating the benefits here, the price tag alone will probably put you off purchasing it. The juice – which weighs in at £16 a glass if you’re interested – may well end hitting supermarket shelves soon, but don’t hold your breath that it’ll save us from the dangers of air pollution. There are plenty of measure to solve that problem already.

Curtis Holland
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Living the Meme: What happened to the "Bacon is good for me" boy?

Eight years after becoming a meme, the boy dubbed "King Curtis" explains what life is like now.

It is hard to pinpoint the one quote that made Curtis Holland a viral sensation. When he appeared on Wife Swap eight years ago, Holland – aka King Curtis – battled ferociously with his replacement mum Joy, who wanted to rid his home of unhealthy snacks. “Chicken nuggets is like my family,” he said at one point; “I don’t wanna be skinny! I wanna be fat and happy,” he said at another; during one particularly memorable scene he wrote “I am not lisning to your rules” on a Post-It note.

“Bacon is good for me!” perhaps comes out top. The quote – like all the others – has become an internet meme, featured in screenshots and gifs, but has additionally been remixed into a song. The original clip has over ten million views on YouTube. Now aged 15, Holland is speaking to me from his home in Vanceboro, North Carolina. “Oh yes!” he says when I ask if he still likes bacon. “Every morning my mum gets up and we all cook bacon together.”

 

Before speaking to Holland, I had eaten (ten) chicken nuggets for my tea, but when I tell him this I'm not sure he believes me. “I know some people say this just to say it,” he says, before admitting he himself had eaten some that day. “This morning that's exactly what I had.”

Holland speaks in a straightforward matter-of-fact tone that is just as endearing now as it was when he was seven. He is incredibly respectful – calling me “ma’am” at least three times – and is patient when I struggle to decipher his thick Southern accent (“pennies” for example, becomes “pinnies”, “cars” is “curs”).

“We live in a small community, and a lot of people say that I'm the movie star,” says Holland, when I ask him to explain how life has changed since appearing on TV. When I ask about life after becoming a meme, Holland is less sure. “I mean I don't have a Twitter but a lot of people say that I'm up there just about every week,” he says (in reality, the clip of his appearance alone – never mind gifs, quotes or screenshots – is tweeted multiple times a day).

There is one meme moment, however, that Holland definitely didn’t miss. In 2015, Pretty Little Liars actress Lucy Hale posted a photo to Instagram asking for an update on his life. In response, Holland created a YouTube video asking for money to rebuild cars and confidently saying “Someday I’ll get my own bacon brand.” The video got over 400,000 views.

“I went viral for I think three or four days and I was on the most views on YouTube,” explains Holland. “That was pretty cool for me, to see when I look on YouTube there my face is.” How did it make him feel, I ask? “It makes you feel good inside. One day I come home from school and I was mad, and I can tell you it just made me feel really good inside to see that [the video] was pretty much one of the top in basically the world.”

Despite enjoying the attention, Holland has no aspirations to be a TV or internet star again. He is part of an organisation called the Future Farmers of America (FFA), and plans to go to his local community college before becoming a welder. “There’s a few know-it-alls in the community,” he says, “They just say it’s crazy how you went and did all that and now you’re not going on in the movie field. That’s not something I’m really interested in.”

Yet although Holland says it’s “time to move on a little bit”, he also admits he would be open to any offers. “A lot of people say well why don’t you just get up with a bacon company and do commercials or something… I mean I wouldn’t mind doing that if they came and asked me.” After Wife Swap, a company did come and film a pilot for Holland’s own show, but it never amounted to anything. “I mean you'd be lucky to get on TV once in your whole life and I feel like I really enjoyed it when I was up there,” he says when I ask if this was disappointing.

All of this means that Holland hasn’t made much money from his viral fame. Unlike other memes I’ve spoken to, he hasn’t earned hundreds of thousands of dollars. “I believe I got 150 bucks,” he says of his “Update” YouTube video, “All the other stuff like the ‘Bacon is good for me’ songs, they’ve [the creators] made $75,000 and that’s a lot of money putting away."

“I mean it don’t annoy me because it ain’t my fault; it’s nobody’s fault in the situation. They found a way around the system,” he says when I ask if he’s annoyed at others’ making money at his expense.

Nowadays, Holland is still recognised when he is out and about, and says he has signed over one thousand autographs in his life (once he was wary of a neighbourhood policeman who was asking him to sign a parking ticket, before he realised he simply wanted an autograph). “I don’t get sick of it, but of course you’ve got a few people that want to be rude about what you’re doing.

“I really don’t care, I’m a really upbeat kind of person. If there's somebody in a computer screen telling me something that means nothing, you know?”

For Holland, then, the good outweighs the bad. Apart from being asked after by Lucy Hale, his favourite thing about going viral is that he gets to make people laugh. “If I can go up to somebody and make their day and make them smile, I feel like I’ve done a great thing,” he says.

I end the interview with Holland like I end all of my interviews with memes: by asking him if there’s anything he would like to say – a message he’d like to get out there, or a misconception he’d like to clear up – now that he has the chance.

“Oh nothing I've got to say,” he begins, “except bacon is still good for me.”

 “Living the Meme” is a series of articles exploring what happens to people after they go viral. Check out the previous articles here.

To suggest an interviewee for Living the Meme, contact Amelia on Twitter.

Amelia Tait is a technology and digital culture writer at the New Statesman.