I haven't been doing an evening dose because I usually eat later like around 6:30 - 8:30. Even if I were to eat earlier, it seems like food stays inside my stomach for awhile. I have heard that food takes 6 to 8 hours to digest? Something like that. So having an empty stomach seems like a real challenge to me.
The only time my stomach is genuinely empty is in the morning when I wake up.