I have done Veganism for a month, fell apart at a family party ate a ham sandwich by mistake went home and bought a steak and have never looked back since.
It opened my eyes abit, when I was weight training I was just using the same sources for protein. Once my knee is fixed I will be more balanced and use beans for some meals as apposed to loads of chicken or beef.
We can never take moral high ground over animals lives though, Vegans bang on about animals whilst having Iphones, designer clothes, cars and pretty much everything else in modern life. Starve a Vegan and put him in the wild and I bet they try to catch fish or hunt animals.
It depends on how you consume meat that is the main problem.
If your source of meat is mcdonalds or a fry up then yes it is going to be a problem. We can digest meat fine but we struggle more with refined, processed stuff like oils and the frozen crap that we often throw in on the side. Add in things containing sugar or salt and you are probably consuming things that have no nutritional value at all.
If however you eat fresh meat cooked with fresh veg etc then it is never going to be a problem. So get your steak, chicken or whatever cooked with very little oil or rubbish and lots of veg and just enjoy it because it won't do you any harm at all.
In nature you don't see lions, tigers or any other animals going vegan because they would die, perhaps we should just stick to our instincts. We have long eaten meat long before the loony vegans came along with their 'facts'.