No, take it preworkout, the effects of hgh are not instant, hgh is a prodrug to igf-1. The process of it traveling to your liver, telling it to produce igf-1 and then producing the maximum amount of igf-1 from that dose takes a while, typically most of us would say 2 hours, (this has nothing to do with your eating) so you take it 1hr pre workout, by the time youre done lifting your igf-1 levels are sky high helping repair the damaged muscle and binding to the all the receptors in that muscle, as well as helping transport nutrients as igf-1 is known to do in some capacity. Taking it post workout will cause you to kinda miss that window of opportnity, by the time the process is complete youll be 2hrs + post workout, that little anabolic window will be closed if its really there. But from experience, i used to take it post workout until someone enlighted me like im telling you and ive noticed a pretty big difference. If your bulking I would take that entire 5ius pre workout, if your cutting do like youre doing, 2.5 in the morning and then add the 2.5 pre workout. Smaller more frequent shots when dieting seem aid in fat loss alot more then one big shot, but when bulking big shots pre workout, and IMO before bed is the way to go.

U don't have to wait to eat it has no effect on the gh!!

I like mine in the AM and again PWO. Ive used HGH extensively and that's what works best for me.

I used to pin 2.5iu post-work, not eating for 45 mins or so.

Depends on your goals