Solein
That's far too close to "Soylent"...
The European Space Agency (ESA) has coined a tortured acronym for its project to feed astronauts on long-duration missions: HOBI-WAN (Hydrogen Oxidizing Bacteria In Weightlessness As a source of Nutrition). We at El Reg appreciate a good acronym stretch, and HOBI-WAN's implications for keeping astronauts fed and active during …
... that's your food supply. Actually it's solid cardboard all the way through to the centre. Bon appetit.
One of the things about human beings and 'food' is that a varied diet of interesting and good flavours and textures generally does wonders for morale. The absence of the same does not make for a happy ship, or a happy crew!
On a long enough mission 'nauts might get used to tubes of flavoured mush. Then, coming back to Earth and trying to eat all this stuff with weird shape and *textures* might actually be a problem. Recognizeable hunks of animals and plants - Ughh!
(At a Christmas dinner years ago, a family friend would eat slices of turkey breast, but wouldn't touch wings or drumsticks. Turns out he was OK with stuff as long as it wasn't physically recognizeable.)
'might get used to tubes of flavoured mush' - long experience of seafarers and the like shows that although they may well/often do 'get used' to eating the same dull crap day after day, it really doesn't help make for a psychologically resilient and generally 'happy' mission. People will put up with amazing levels of deprivation if they have to, or regard the sacrifice as worthwhile, but that isn't the same as having people working and relating at their optimum, it's more about mere 'survival', which really isn't the same thing at all.
When it comes to enduring and surviving a 'Mars mission', is that really the best we can do: "Enjoy your cardboard box. Try not to eat it all at once"?
Indeed not. I don't eat chicken - courtesy of a bad food poisoning donkey's years ago - or anything that resembles it, so other fowl, animals like guineapig or rabbit (or cat, I suppose).
I can force it down if it's not too recognisable, but if it's visibly chicken, I'll throw up before it goes down. A psychosomatic learned reflex no doubt, but simpler just to say 'I don't eat chicken'.
Winkypop,
Don't be silly. There's no requirement for motorway service station fare to contain any nutrition whatsoever.
And as for what goes in the pasties...
You'd hope it's just roadkill. But that's probably in the sarnies. It's Sweeney Todd's combined barbers and pasty company that do most of the catering.