Vegetarianism

Vegetarianism was the practice of following a diet which excluded meat. The Doctor became a vegetarian in his sixth incarnation, (TV: The Two Doctors) but gave it up by his ninth. (TV: Boom Town) The Dream Lord mentioned this to the Eleventh Doctor, calling him "veggie". (TV: Amy's Choice)

The Fifth Doctor's companion Peri Brown was a vegetarian and therefore baulked at the thought of eating roast boar at a banquet thrown in their honour by Pharaoh Erimem in Egypt in 1400 BC. The Doctor advised her to pretend to have eaten it by moving it around her plate. (AUDIO: The Eye of the Scorpion)