I agree. However, I am suprised that it is the partner's education that seems to matter more. I would have thought that if one were reasonably educated you would be able to make your own choices WRT food, lifestyle etc.
But, ime, in most households the woman does the bulk of the food shopping and cooking. And people are weak, if someone is serving tasty but unhealthy food to you regularly, you'll end up eating some of it.