Croissants and muffins being unhealthy should be no surprise. I am more interested in findings like food that gets a bad rap being not that unhealthy and supposedly healthy food being bad.
People also refuse to understand that juice is basically sugar water with some extra flavor, vitamins, and antioxidants that don't change how unhealthy it is for you.
White rice is basically pure carbs with barely any nutrients.
Fastfood is heavily processed but often contains enough vegetables, meat, etc to not be that bad all things told.
I am reasonably sure carbohydrates are nutrients.
You should fact check your intuitions about nutrition on cronometer.com.
2 cups of cooked white rice have 17% of the days nutrients for 20% (400) of the calories (2000cal/day). 47% of the day's iron, 33% of the day's folate. 20-30% of almost every B-vitamin. 25% copper, 65% manganese, 43% selenium, 14% of the day's zinc.
Also look at 500g of boiled potato. Someone in this thread called it pure carbs. Ok, pure carbs that give you 27% of the day's nutrients for just 18% of the day's calories? That's a great deal.