Pre op, I did 4 months of low carb, high protein. Lost 45lbs. Then two weeks of liquid diet, lost 10lbs more. Premier shakes have been 2/3 of my consumption for the last 4 months. But I’m someone who could eat the same meal for every meal for years. Creature of habit. The liquid diet was an adjustment, but I stopped being miserable after day 3 and my body fully adjusted to just being tired but not feeling bad by day 7. I’m now 3 days post op. No hunger, mild pain, no nausea, biggest struggle is keeping up with meds and how gross crushed pills are. Honestly, the diet seems tough during the first few days, but if you aren’t 100% committed to a complete change, none of it is worth it. Good luck!