How do all of the warnings about "bad" foods/drinks influence our eating habits?

Nowadays every food can be seen as “bad for you” depending on the way you look at it with very few exceptions. From red meat and apple juice to dairy and starches I feel like everything has a huge warning label on it and some where down the line an invisible person will write a book about “the danger of eggs”. -now I know that seems a little over exagerated but things like weight watchers and ab twisters are million dollar industries right now so people are clearly afraid of gaining unwanted pounds.

So where does that leave us? Do you think that all of the “new research” about the secret behind foods is really helping us? Do you listen to these supposed “scientists”? I just feel like if someone produced an article saying that dihydrogen monoxide caused an increase in body weight (say the makers of this website: http://www.dhmo.org/facts.html) people would never drink water again. So how much is too much, and how much do you let all of these warning signs effect your eating habits?

I know we should all keep in mind general ideas like eating a stick of butter is probably not the best idea, but sticking to an all soup diet doesn’t sound good for us either. I’m not saying I reject the information either, I’m just wondering how everyone else is effected by this overload of red tape in the grocery store.