Question about timing

Hi folks! I am new to this supplementation, after reading about it a lot I finally went ahead to give it a try. I will share my experience as well. I am fairly healthy and active male. I am observing intermittent fasting as well and usually don’t eat until 3pm atleast, what is the best time to take NR supplements? And as everyone says they take it early morning, is it okay to take on empty stomach early in morning and go without eating until 3pm?