Teach the parents

I read Julian Grenier's article with interest. But I believe there are two flaws - he didn't mention the role that parents have to play in educating children on good eating habits, or how proper meals and meal times educate children to be healthy. Children need to be in an environment where there is routine. The home environment matters a lot to a child. How are we as teachers supposed to help children to learn if we do not get support from their parents or in their home life?