There have been three primary motivations for choosing to go with a plant-based diet. I’m sure there are others, but these are my own. These are not in any special order, and they are equally ranked. At different times, one may be ascendant to the others, but that’s mostly because I have a particular thing in mind that day.
From my reading over several years, I believe the evidence is overwhelming, plant-based diets are better for longevity and quality of life. The work of T. Colin Campbell, particularly, has been the most thorough and most convincing. The diets espousing the benefits of animal protein over plant-based proteins notwithstanding, the longitudinal research of Campbell and others supports the notion that plant-based is not only adequate for protein, but is superior in every way. For another book on this particular subject, The Protein Myth, by David Gerow Irving, is definitive.
Senseless animal slaughter
I won’t post the pictures here, but there are so many outstanding books on the subject of how we get meat, along with dairy produce, to our tables, that I believe it is morally damaging and condemnable for me to eat animal products. One of the best books, written by Jonathan Safran Foer, Eating Animals, opens that window into animal cruelty like no other has done for me. There are dozens of outstanding books and films on the subject.
With the evidence mounting that food shortages will become the number one global concern within my own lifetime, we can no longer afford to give up the amount of farmland it takes to satiate the appetites of a meat-eating population. This, along with the effects of cattle raising, including pigs and poultry, upon negative climate change and water pollution, means to me that continuing to perpetuate this cycle is to commit a major crime against humanity on a global scale.
My reasons may not be everyone’s reason. But, they have been carefully considered over many years. The appetite was not hard to kill once the evidence was in.