Both pizza and chicken nuggets are higher in fat and protein so don't spike insulin or blood glucose levels. The preservatives and additives make the Pizza Hut pizza and frozen chicken nuggets unhealthy for other reasons.

If you were making your own baked chicken nuggets or pizza from quality ingredients then they are definitely healthier than potatoes or white rice, assuming the calorie intake was the same.

This is counter-intuitive to most people because of all the misinformation around the benefits of a low-fat diet [1].

[1] https://www.goodreads.com/book/show/24945404-the-obesity-cod...