Healthy Foods

The concept of a "healthy" food is a topic worth addressing. We assume with blind reverence that eating a food like an orange or a cruciferous vegetable like broccoli is a healthy practice and one we should engage in more often. A food like a candy bar or tortilla chips is without question considered to be "unhealthy" by most standards and should be avoided or eaten infrequently. But what about eating them together? Do the healthy foods cancel out the unhealthy ones giving us a net balance of healthy or unhealthy foods? Is the candied apple the perfect example of a good food covered in a bad food thus resulting in a net neutral food?

Or do the qualities and nutrients in the good food overpower the bad food?