Protein
First and foremost if you become vegetarian you will simply eat less protein. This is a big deal because we need protein in our diets. Protein is literally what makes up the building blocks of our body and essentially all we do when we eat meat is to recycle the flesh and to use it to reconstruct our own.
Now if you mention this to a signed up member of the vegetarian party then they will tell you that you can still get protein in your diet. This is true no doubt – from eggs for one if you aren't vegan, from milk and from plants and vegetables. Yes things like beans and broccoli do contain protein and soya beans in fact contain more lean protein than many sources of meat. So what's the problem?