healthy/unhealthy food...
Unless it's literally poisonous, there simply is no unhealthy food.
Or in other words, everything is unhealthy to you depending on the dosage.
Eat exclusively 20-30 super-healthy apples per day over months/years and you might actually get fat as well as look like some chemotherapy patient (if not already dead).
Not true. Trans fats increase your risk for coronary heart disease at any amount.
Processed meats also increase cancer risks at relatively low levels, but they're not as bad.