I don't think it will pass, but even if it does, I don't think people will pay much attention to it.
I would think the cola companies and others who have products that would fit into this category would be very unhappy and up in arms over this, let alone the people that eat/drink these types of foods (which probably covers a lot of people).
In the end, people are going to eat or drink what they want, even if they have to pay higher for it in most cases. Sometimes if they can do it cheaper, they will, but almost everyone wants a soft drink from time to time.
Also, when you think of all the drinks, foods, etc. that have sugar in them that could possibly be put in this same category, it would be astounding. I don't think it would make people very happy to see this happen.