In all of the cases that I've seen it is usually subtractive, but most of the time it depends on how old the child is.
Cooking changes the composition of carbohydrate to sucrose; this gives a natural sweetness to the food. This is the reason why starch-rich or carbo-loaded kinds of food are very enticing to the senses, because when they are cooked the food naturally releases these sweet aroma and taste that you cannot resist.
Answer:
This can lead to many things such as a stroke, heart attack, kidney failure, and many other things.
