There’s no way for us to know except the way you feel after experiencing one or both. my reactions usually come with a lot of fatigue and not feeling like I can’t do much. The die-off is more of a full body feeling more in your head and makes me want to eat sugar a lot and need to use the bathroom constantly. make sure to take the recommended supplements before you start die-off. Reactions can come from anywhere after you eat a food to a couple days after I think. This is why when you test foods its recommended to take only a couple bites of it. I ate coconut bread and had a reaction but that’s because I wasn’t on the diet long enough before trying it and I ate too much. I woke up with overwhelming fatigue and pretty bad oral thrush, it sucks.