It's not "funnily enough" that some veges come out whole.. that is sometimes their purpose.. it's called 'fiber'..insoluable fiber we need it to clean the digestive tract.. and most of the time you shouldn't be able to detect it in your crap. If you do that probably means you didn't chew enough. As for meat, you can see chunks of meat because it's the same color as your crap for the most part.  The only issue with meat is that it is very hard to digest. it takes a long time to break down. a lot of people loose their digestion abilities with age or certain diseases. This is when it is a good idea to stop eating meat. To take the work load of digestion off your liver. If you do not properly digest things it leads to toxins in the bloodstream which leads to inflammation which leads to a lot of unexplained muscle pains like the so called disease 'fybromyalgia'.. doctors give it a name but this is what it all stems from.. improper digestion.  And yes people with perfectly healthy digestion can digest meat but that means nothing since we can also digestion chemicals in the form of twinkies or other junk foods made solely from chemical compounds and not real foods. Young people who are healthy have strong digestive tract and can process just about anything.. but wait..when you get older you will find you can not long eat what you use to be able to eat.. this is where all kinds of diseases come about.. no one puts it together that it starts with digestion because it takes decades to form...   I was always a meat eater and started have major symptoms of fybromyalia.. stopped eating meat and it went away.  All because of the undigested proteins floating around in my bloodstream creating toxins and then inflammation.  So basically I'm saying as we age we can no longer process the difficult foods that do include meat. So you may want to reconsider your own theory and listen to your body. if you are over 30 then you may want to ask yourself 'why' you are have certain pains here and there.