I can't even understand why people are eating/drinking in planes, I haven't take a flight since several years but usually you've a bit of adrenaline, thus no hunger
If you're not used to flying (like yourself) this might be the case. For regular flyers (like me) it's often more like taking the subway or commuting to work. Personally I always get an aisle seat, take at least two liters of water with me to combat the dehydration and let me get to work/family/whatever in the best shape I can be when I land. I always eat ahead of time or at the airport (lounges make this more reasonable) because I also know that on the other end of the flight there's baggage, a taxi, checking into the hotel, getting to dinner, etc. So figure at least two hours of hassle before a dinner or snack is possible, usually more.
Flying dehydrates you - the cabin is pressurized by constantly pumping outside air into the pressure vessel that is the fuselage, and the air at cruising altitudes is extremely dry in addition to having less oxygen than we are accustomed to at ground level. We increase our respiration rate due to the lower oxygen content, and lose a fair amount of water in the process as the dry air drains it from us.
I've never been on a flight long enough that I needed to eat, but even on a regional flight I find myself wanting at least something to drink because my throat feels a little dry.
I fly small planes and I'm usually into a snack bar before I level off. I do try to make one liter of water last the whole flight, though, which can be up to 5 hours.
If you're not used to flying (like yourself) this might be the case. For regular flyers (like me) it's often more like taking the subway or commuting to work. Personally I always get an aisle seat, take at least two liters of water with me to combat the dehydration and let me get to work/family/whatever in the best shape I can be when I land. I always eat ahead of time or at the airport (lounges make this more reasonable) because I also know that on the other end of the flight there's baggage, a taxi, checking into the hotel, getting to dinner, etc. So figure at least two hours of hassle before a dinner or snack is possible, usually more.