Fasted training is more of a personal preference I think, some people think it works well for cutting. I usually workout first thing when I wake up without eating but that's just cause it fits into my schedule that way. It doesn't really bother me going on an empty stomach but everyone is different. As far as results go I think as long as you eat the same amount in a day it's not going to make much difference, although I'm sure people who do IF will disagree.
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