veganism: There are four main reasons and an individual may decide to quit mea based on any or all of these (or some other reason!). 1- animal/human rights- some people are opposed to the killing of animals for food since they must inevitably suffer. There are human rights issues involved as well, which I include in here since humans are animals. Basically some people believe the use of resources to produce livestock creates a disparity on global food availability and security, meaning more is allocated to the rich than the poor. 2- environmental- the use of animals is unsustainable at the current levels because there re too many humans alie and we are increasing at an alarmingly rapid rate. There will be 9 billion of us by 2050. 3- spirituality- many people do not eat animals due to their spiritual beliefs. India has about 475 million vegetarians who are mostly motivated by their religion to not eat meat. 4- health- many people feel healthier eating vegetarian foods and people who have family histories of diseases such as bowel cancer, high blood pressure and heart disease benefit most from being vegetarian as it reduces the risk of these diseases provided it is done sensibly without replacing unhealthy processed meat products with unhealthy processed vegetarian products. So there may be other motivating factors, but the vast majority of vegos you come across will cite one or more of the above as a major influence.|||Some people do it for one of those reasons, some people do it for both reasons.|||If you educate yourself well and understand human nutrition it can be a very good thing|||its not exactly unhealthy, though ur body becomes less efficient at handling meat