I don't think the food industry would be too worried about lost revenue. They will be more worried about the cost of having to create and replace whole new ranges of products to fit into these guidelines, but in the end they will deliver the same wide spectrum of foods as they do today and fit into the guidelines. Perhaps it will raise the prices of the products generally, which will help with overeating but will also make products falling outside of the guidelines more attractive. The irony is that in 10 years time our 'understanding' of what is healthy and what is not will probably have changed radically.
