Earlier quoted context omitted.
I abstain from food between 8PM and 12PM Monday - Friday, adjusting for training schedules and such. It really helps me keep my GI tract clear, reduces inflammation, resulted in weight loss, etc. without any effect on my cycling fitness. IF (or IMF as some people call it) is amazing.
I've fasted from ~8P to ~3P every day for coming up on 2 years and apart from making me more mindful of what I eat and drastically reducing my appetite I've experienced basically no other health benefits. IF is increasingly well studied and it is not especially amazing. (I like it a lot. Just saying.)
The former means I'm ravenous the latter is a trade off I don't like for bonding reasons.