If the seven reasons to be vegan given above aren't enough to convince you, let the authors of The Vegan Cookbook add an eighth: "Neither of us found our food even half as enjoyable before becoming vegan as we have since. So, if you can't bring yourself to change your diet for health, economic, ecological, altruistic, compassionate, ethical or spiritual reasons, then  change it for the sheer pleasure of eating the wonderful vegan dishes we've invented  for you!"