Why I turned vegan

The first time I watched "food inc." was in the geographic lesson in 2011. And I realised that something in my diet has to change. So I went vegetarian. Two years later I started to study nutritional science at university and year after year I become more information about how you digest your food and prevent disease caused by nutrition.
But the production of our food is just a little part of the content of the education.
I started to research on animal based products, not just meat, but also milk and diary products. Because of the cruelty on animals and the damage of the environment I began eating only plant based.
At first it was an experiment of 30 days. I never thought that I could stop eating cheese on my lasagne or butter on my bread, but now I continue a life without harming animals or stress the environment.