I see vegans as a higher form of humanity who do it for moral reasons (sadly I'm not quite on that level myself) but a balanced diet getting nutrients from many different foods is the way to go. You can healthily be vegan because that encompasses a lot of different foods but just meat surely won't ever work. Lots of non meat products have proteins.
When you think about it our bodies create many nutrients and proteins themselves hence why they are in meat or if they aren't in the meat they were obtained from eating plants etc. Many of the issues of food being unhealthy and not providing the nutrients etc we need is because its heavily processed often sterile destroying the healthy aspects of the food. That's why fresh or frozen is often the way to go rather than chilled or canned.
