I’ve done this , after 2-3 days the Hangry passed for me , breakfast was easy to miss .
Weight fell off me , fasted rides ok if kept out of red zones .
I found 80km was ok fasted, ‘fat adapted’ perhaps.
I found I liked the hungry feeling when I was actually hungry , food tasted better , I made better food choices as I thought about it more .
Sweet things got too sweet a tiny bit would suffice .
I experimented with the hours , I did 48 once ( not recommended) when I wasn’t working .. felt ok .
15 kg loss ... I now rarely have breakfast , take a bigger lunch and an early smaller dinner .
It seems to make sense to me , worked and was easy .
A few kg have returned due to lockdown , but I’m just being more careful again with portion size and my cycling has reduced which is probably the cause .
Kefir now a part of diet too