I am having surgery on 8/5, had a cruise booking for Puerto Rico for 9/20 that I just canceled. Luckily The deposit wasn't too bad a loss. I would have been only 6 weeks out and not sure how I'd be doing with food and stomach tightness. I thought about taking shakes but wasn't sure how. The liquid form might add weight to my luggage and not sure if powder is allowed on a flight, I am assuming as long as it's sealed it should be fine but who knows. I am considering rebooking in November when I'm 3 months out. Has anyone take protein on their flight, if so what form?