They're both the same. It's more about how you feel than what it actually does, you will burn the same amount of calories either way most likely.
Whether or not you eat is up to you, but for me it depends on what time of day it is. If I'm walking first in the morning I will usually eat a banana with some almonds or a protein bar first. If I don't I get really hungry and too lethargic to complete my workout. But if I eat too much I feel too heavy too much. I need to eat enough to fuel my workout and then see me through my cool down and shower.
If I'm working out in the afternoon I don't eating anything since I've already had lunch.
I eat before I work out, depending on the time. I usually work out after work during the week. If I have a kickboxing class at 4:30, I'll eat some protein before then dinner when I get home. If I'm going to the gym, I eat dinner at 5:30 and workout at 7. I think it's a matter of preference.
Humen can do anything, in my opinion, no matter you are eating before a walk or after, the thing is you are eating. if you search you will find people ate mirror, lizards even airplane
the human digestive system could digest anything but depends on practice
I know people called me a fool etc but its a fact
It doesn't mean that go and eat something like that but I shared my experience.
food matters a lot a healthy food matter a lot