Things taste very different at altitude. Ever notice how much tomato juice is consumed on a flight? When was the last time you saw someone order tomato juice when on the ground? It tastes completely different. Our taste buds lose their ability to taste, so that same butterscotch might not be so special when you're at home.

Try reading

http://www.worldhum.com/travel-blog/...buds-20101015/

or

http://blogs.discovermagazine.com/80...od-tastes-bad/