From what I've read the things to keep well clear from are trans fats, (mostly in takeaway and fast food), salt added to meals and cheese. Everything else in moderation and mixed with lots of the good stuff, (such as oily fish and vegetables), is the way to go. IE common sense approach.
Smoking is a big no no but as long as you drink well within your allowances and don't binge drink then alcohol seems to be OK.