Forks over Knives

I just watched an interesting documentary called Forks over Knives.  I was fascinated by what they showed in this movie - it was all about the incidence of cancer and diabetes based on the relationship to the amount of meat in our diets.  I've been wrestling with this concept for the last few years - I feel like we eat SO much meat.  I have been trying to eat meat only at dinner lately as a way of slowing down how much meat I was eating.  If any of you are vegetarians or have thoughts on this idea, I'd love to hear them.