8 surprising foods that suggest the FDA needs to update its definition of 'healthy'

Last week, nut-filled snack bar company Kind got into a spat with the Food and Drug Administration over what's considered healthy.

In March, the FDA issued a warning letter that explained why Kind had to remove the word "healthy" from its labels, along with a "+" sign that once was used between the words antioxidants and protein. (To bear the "+," the bar needs 10% more of the healthy nutrients in a comparable snack bar.)

Kind isn't taking the situation lightly, instead challenging the way "healthy" is defined as it relates to fat.

Here's a rundown of all the foods the FDA considers "healthy," and those it does not: