Are nutritional warning labels effective at steering consumers away from unhealthful foods?

In 2016, Chile introduced the gradual implementation of a comprehensive and mandatory food labeling law that was designed to warn consumers of the risks of unhealthy foods. To do so, the law required that if a product contained excessive amounts of certain nutrients (such as sugar), which are considered unhealthful if consumed in large quantities, the product should display mandatory warning labels on the packaging. Moreover, several other countries have already adopted these new warning labels.

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