Indeed. Quaker chewy granola is identified (by price -- $0.15) as a good food, which may be true if you're out hiking, but as part of an urban lifestyle, granola bars are a glycemic disaster.
By contrast, someone who eats an otherwise moderately healthy diet can eat the caloric equivalent of several granola bars worth of walnuts -- identified by google as a "yellow" food -- with no ill effects, and certainly no insulin spike.
By contrast, someone who eats an otherwise moderately healthy diet can eat the caloric equivalent of several granola bars worth of walnuts -- identified by google as a "yellow" food -- with no ill effects, and certainly no insulin spike.