by Julie Fidler, Natural Society:
Do you know which foods are “healthy?” If you said no, or you only have a vague idea, then you have something in common with the majority of people who responded to a recent survey by the International Food Information Council Foundation (IFIC). 
Approximately 8 in 10 respondents to the IFIC’s annual Food and Health Survey said they have conflicting information when it comes to foods that are healthy to eat and those that should be avoided. More than half of those surveyed said the lack of clear information makes them second-guess their food choices.
Some foods are obviously unhealthy, such as fast food and junk food. But beyond that, things get a little fuzzy.