Nevertheless, human as philosophers are, eating is also for them important. Somewhere in the journal of his voyage to Germany and then to Italy Montaigne wrote that he regretted that he hadn’t taken his cook with him in order to write down local recipes of the regions he passed, so that the cook could prepare these dishes, when he was home again. Wittgenstein explicitly preferred simple meals. Somewhere on the Internet I found this story, which was typical for him:
“Wittgenstein went to stay with his friend Maurice Drury in Ireland. Drury described the visit:
Thinking my guests would be hungry after their long journey and night crossing, I had prepared a rather elaborate meal: roast chicken followed by suet pudding and treacle. Wittgenstein rather silent during the meal. When we had finished [Wittgenstein said], ‘Now let it be quite clear that while we are here we are not going to live in this style. We will have a plate of porridge for breakfast, vegetables from the garden for lunch, and a boiled egg in the evening.’ This was then our routine for the rest of his visit.” (http://www.newyorker.com/books/page-turner/wittgensteins-powdered-eggs)
For other philosophers it is the same, or for most of them: Food and eating are important, also for philosophers, but they don’t talk about it in a philosophical way, even not if they need an example to flesh out an interesting problem. As for this, Searle is an exception. Generally reference to the theme remains restricted to some oblique remarks, as if a philosopher can survive without eating and drinking.