http://www.salon.com/2014/02/21/7_foods_that_were_supposed_to_be_incredibly_unhealthy_%E2%80%94%C2%A0but_are_actually_anything_but_partner/
Tl;dr

1) Coconut Oil
2) Coffee
3) Whole Milk
4) Salt
5) Chocolate
6) Popcorn
7) Eggs