: I know how that feels. It is tricky.
I remember being envious of travelers who whisked out an apple and some cheese mid flight. It spurred me on to travel with healthy food but I always felt a little self righteous, as though I was criticizing companions for their choices.
I now say firmly "Special food requirements " or bring another portion or two for companions. Better to bring a large hunk of cheese and more rye bread that to go short on what you need. That might please everyone and if you had rye and cheese or whatever left over - -- well, grilled cheese sandwiches are always good.
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