Generate text that refutes this claim: There is ample precedent in the form of other “sin” taxes  A sin tax is a term often used for fees tacked on to popular vices like drinking, gambling and smoking. Its roots have been traced back to the 16th century Vatican, where Pope Leo X taxed licensed prostitutes. [1]  More recently, and with greater success, US federal cigarette taxes were shown to have reduced consumption by 4% for every 10% increase in the price of cigarettes. [2]  Given the success achieved with uprooting this societal vice, which on a number of counts is similar to the unhealthy food one - immense health costs linked to a choice to consume a product – we should employ this tried and true strategy to combat the obesity epidemic.  In fact, a recent study published in the Archives of Internal Medicine followed 5000 people for 20 years, tracking food consumption and various biological metrics. The report states that “Researchers found that, incremental increases in price of unhealthy foods resulted in incremental decreases in consumption. In other words, when junk food cost more, people ate it less.” [3]  Thus leaning on the successful tradition of existing “sin” taxes and research that points out the potential for success of a similar solution in this arena, it should be concluded that a fat tax is an important part of a sensible and effective solution to the obesity epidemic.  [1] Altman, A., A Brief History Of: Sin Taxes, published 4/2/2009,  , accessed 9/12/2011  [2] CDC, Steady Increases in Tobacco Taxes Promote Quitting, Discourage Smoking, published 5/27/2009,  , accessed 14/9/2011  [3] O'Callaghan, T., Sin taxes promote healthier food choices, published 3/10/2010,  , accessed 9/12/2011
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Choosing to introduce a new policy based on experience with a different, seemingly similar case, is not a good idea.  Tobacco and fatty food are vastly different things for a couple of reasons. An obvious one is the fact that fat is in fact necessary nourishment, even the trans-fat kind. Cigarettes on the other hand have absolutely no value to a persons’ health – their detrimental impact is quite infamous.  A different one is the importance of dosage. While smoking is harmful in all doses, indulging in larger amounts of fatty food isn’t. Consuming what we consider “junk food” in moderation has no ill effect on health. [1] This results in legislating for any kind of fat tax much more difficult as the tax needs to allow consuming fat in moderation while preventing excess.  [1] Roberts A., Let Them Eat Cake (Why Junk Food Is OK For Kids, In Moderation), published 5/9/2011,  , accessed 9/12/2011