I would just add a few comments.
I agree with my colleague. A multipronged approach is very important. With respect to public education and public awareness, I know that Health Canada is intent on developing a public awareness campaign. From what I understand, it will focus on parents of teenagers, advising them not to keep soda in the house. Not buying it and not having it in the house would help reduce consumption. That's a very interesting public awareness campaign.
The other point I would add is with respect to a levy on sugary drinks. One interesting unintended positive outcome of a levy is that it will actually raise awareness in the population about the dangers of sugary drink consumption. If they know that a levy is being put on a sugary drink because it is not healthy, that would help increase the awareness. That's another way a levy would have a positive impact on health.