I've been wanting to use preworkouts cause I love the hypes up feeling and it helps me get my ass up and move tbh.
Do all preworkouts break a fast? And why? All fasting functions or particular ones?
The preworkout i want to use is c4 original its 0 to 5 cals. Based on the ingredients it seems ok to me other than sucralose (though opinions are conflicted about that)
Ya I can drink coffee but its not the same buzz. So tell me the science of it.
Answer
I personally have not had problems taking a preworkout while fasted. Are you using anything to measure your level of ketones while fasted, that could be a good indicator of whether the sucralose is impacting your fast.