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The population of Hungary is the most obese in Europe. Hungarians eat fewer vegetables than most Europeans and more food types that may be considered to be demerit goods. In doing this they are exerting their consumer sovereignty. In 2017, the Hungarian government introduced a tax on unhealthy food, known as the chips tax. The tax has had some success in moving demand to healthier foods. Some economists suggest that governments should use price controls as well as taxes to influence the food market.