The ketogenic / carnivore diet (which now includes more plants but is still almost zero carbs)
O Meal A Day (OMAD) which is a long intermittent fasting I’ve been doing for 2 years+ with no miss.
Drugs and herbs to make me sleep. It’s sad I had to do this, it was a dilemma, but without good sleep the body won’t recover as fast (if ever it does).