The recent suggestion by the chief medical officer Sally Davies that ‘we may need to introduce a sugar tax’ is a tribute to the extraordinary media profile of Action on Sugar, the latest pressure group to blame a single ingredient for people being overweight.

Previous targets include saturated fat and salt, but it is now widely accepted that these ‘heart attack on a plate’ campaigns were based on flawed evidence. It is a sign of the changing fads of the public health lobby that Action on Sugar’s scientific director says that the risk from saturated fat in food is now being overstated. In a spectacular example of bandwagon-jumping, his organisation was founded by the same people who brought you Consensus Action on Salt and Health. Perhaps next year they will launch Action on Cheese.

The simple truth is that obesity is, has and always will be caused by an excess of calories from any source – frequently due to physical inactivity and various shades of gluttony. Vilifying a single ingredient has no scientific validity.

The reason campaigners prefer to focus on specific components, rather than the whole diet, is that it enables them to extend the anti-tobacco blueprint of sin taxes and hyper-regulation to the food we eat. This time it is sugar’s turn, and it is no coincidence that the chief medical officer makes the dubious claim that ‘research will find sugar is addictive’, nor is it a coincidence that the food faddists have begun comparing so-called Big Sugar to Big Tobacco.

Unsurprisingly, taxation is top of the agenda. Campaigners can be confident that any government will be attentive to new opportunities to extract money from taxpayers. If a stealth tax can be disguised as a health measure, so much the better.

They should resist the temptation. Previous attempts by governments to influence diet through the tax system have been ignoble failures. A number of academic studies have shown that taxes on sugar, fat, fizzy drinks and dairy products have had, at best, a negligible effect on calorie consumption and no measurable impact on waistlines. Campaigners complain that this is because the taxes are not high enough, but a 2007 study estimated that even a 100 per cent tax on ‘unhealthful foods’ would reduce the weight of the average person by less than 1 per cent.

This is the problem with obesity-related taxes: increasing prices by a few pennies makes no difference to health, but if the tax is set any higher, it becomes politically toxic. This was amply demonstrated in Denmark two years ago when a tax on saturated fat was hastily abandoned after it proved to be highly unpopular. Like all taxes of this sort, the Danish fat tax was deeply regressive and it was particularly ill-judged at a time when the cost of living was rising.

Health campaigners can afford to be sanguine about being unpopular, but it is not they who have to stand for re-election every five years.

This article was originally published in City AM.

Chris Snowdon Final

Head of Lifestyle Economics, IEA

Christopher Snowdon is the Head of Lifestyle Economics at the IEA. He is the author of The Art of Suppression, The Spirit Level Delusion and Velvet Glove; Iron Fist. His work focuses on pleasure, prohibition and dodgy statistics. He has authored a number of publications including Sock Puppets, Euro Puppets, The Proof of the Pudding, The Crack Cocaine of Gambling and Free Market Solutions in Health.

3 thoughts on “Resist temptation: a sugar tax won’t make us healthy”

  1. Posted 15/07/2014 at 19:18 | Permalink

    Apply a negative tax on fruit and vegetables, very simple to implement and should help people eat correctly without the cost.

  2. Posted 15/07/2014 at 19:21 | Permalink

    Implement a negative tax on fresh fruit and vegetables.

  3. Posted 22/10/2015 at 18:43 | Permalink

    governments should only be allowed to inform the public of health issues caused by certain products by public advertising no more ,that way all the lobby groups as action on sugar would have no say in the policy of future governments ,why is it that the people of this country think a lobby group know best lets look at what could happen if a sugar tax is imposed on the public the food industry would look for alternatives and that would lead down the road of finding a sugar substitute artifical sweetners which scientists are telling us could be a cause of cancer one evil to greater evil me

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