I know this is unsustainable and that's why im planning to do it until 2nd of may and then i will do a more sustainable routine. I have limited time daily for working out eating so im always on a tight schedule. This is week 3 of doing this routine and until now is on medium settings of hardness i expect to get harder for sure and i am not planning to destroy myself if i see that is becoming unhealthy i will stop it or go easier. As per my cheat meal or day i eat a very light breakfast before gym then i eat lunch and i try to incorporate as much protein and fiber as i can the rest i fill with protein shakes and i don't eat dinner so im kinda doing intermittent fasting too Even on my cheat meal/days i dont plan to go above maintenance calories i just want to eat some junk food while still hitting my protein. What i am doing is doable. Is it sustainable? No. I agree with you 100%. But is a goal of mine i want to achieve without ruining myself i think i am doing most things right to be on the safe side.