The FDA has started requiring this for some products:
> New Food and Drug Administration (FDA) rules specify that the label on any food package that contains between two and three servings and that could be eaten in one sitting must provide nutrition information both for a single serving and for eating the entire contents.
> New Food and Drug Administration (FDA) rules specify that the label on any food package that contains between two and three servings and that could be eaten in one sitting must provide nutrition information both for a single serving and for eating the entire contents.
https://www.cbsnews.com/news/some-food-labels-now-tell-you-t...