The stand alone complex series, specifically the first one made the characters more human and relatable than the first movie (up to everyone else which was a better depiction) and I could have seen something like this happening. Nice work.
In one of the Stand Alone Complex episodes Bato was eating some food specifically designed for cyborgs, but also in another episode he was shown Drinking, which I feel is proof enough that they can still consume normal food and drink.
A friend of mine complained that they wouldn't be eating such a meal, being cyborgs and all. And I reminded him of episode where they introduced the Buddhist vegan cooking practices and their mock meats. This entire meal is probably entirely vegan and I bet, darn tasty.