I bought ornithine, but when do I take this? Instructions say on an empty stomach and how much? I have 500 milligram pills.

I typically recommend that for sleep. So I'm assuming you got it for sleep. So I would take it before bed, like an hour before bed, let's say, or 30 minutes before bed on an empty stomach, like they say. And then I would start with just 500 milligram, like one pill, and then you can increase further after that to see. So I think I, when I took it, I was taking 2000 milligrams. I'd have to go back and look at the dosage of what's typically recommended and I'd have to go back and look at the sleep study. If you search "ornithine sleep stress study", or "ornithine, stress, sleep pubmed", you should find the study and you'll see the dosage. But anyways, I was taking about 2000 milligrams. I worked up to that, but you may not need that much, so you can start with just 500 milligrams before bed and then see how that goes and then increase further if you feel like you should.