I honestly don't remember what I was going to do with it, (probably something fanfictiony)but I've been cleaning out an old folder of stuff and I've come across a list of all the times the Doctor eats on screen or is presumed to eat. It's obviously incomplete, I figured I'd post it here so it will be immortalized in cyberspace and I can trash the original.
Also, if anyone would like to add to the list, please do. Who knows, someday it may come in handy to someone writing a fic.
Doesn't the fake One in The Five Doctors eat something at some point (without getting any more specific than that)? If he counts, that is.
Real One possibly quaffs some wine and maybe even has some grapes in The Romans, but that could be my false memory acting up again.
Two and Shockeye in The Two Doctors ate their way through a whole restaurant, although Two, I think it is fair to say, was not himself at that precise moment in his life.
Speaking of wine, both Three and Four have partaken from time to time (and good call on the Liquorice Allsorts, Maggadin), and seemed to enjoy it, although Eleven wasn't so keen ("I thought it'd taste more like the gums!") - which raises all kinds of questions about how Time Lords' tastes and preferences and even their recollections of same might change from regeneration to regeneration. Shalka!Nine (again, if he counts) was also a big old drunken lush, or at least wanted people to think that he was. Actually, it was just some kind of clever-clever Withnail in-joke, wasn't it? ;D
Trying to think of examples of Six eating stuff - he did announce to Peri at the end of The Two Doctors that he was going to go vegetarian from there on (understandably, considering what they'd just been through). Although I'm not sure later incarnations have always stuck to this, it certainly implies that Six was planning on eating things on a regular basis in his near future.
Seven also drank tea, in Remembrance (poured by Geoffrey the butler out Fresh Prince of Bel Air), but didn't seem sure about whether he wanted sugar or not (Three, famously, took about sixteen sugars in his brew). Although he was possibly just preoccupied with his radical plans re the Daleks at that point.
Obviously, Jammy Dodgers are Eleven's favourite, but doesn't he also chow down on a Custard Cream in The Lodger?
Interestingly, the website of Burton's Biscuits which makes Jammy (or Jammie) Dodgers says that they have been "one of the nation's favourites for over 50 years" or something to that effect, which makes it sound as though they haven't actually been around long enough for the Doctor to have had any during World War Two... Life, me? Of course I don't need to get one!