Preventing the exploitation of animals is not the only reason for becoming vegan, but for many it remains the key factor in their decision to go vegan and stay vegan. Having emotional attachments with animals may form part of that reason, while many believe that all sentient creatures have a right to life and freedom.

One of the primary reasons people quit veganism is health concerns. While veganism can be a healthy and sustainable diet when done correctly. Some individuals may experience inadequate nutrition and deficiencies due to a lack of knowledge about plant-based sources of essential nutrients.

A poorly planned vegan diet will be lacking in iron and many other vital nutrients and understanding how to get an adequate dietary intake of iron is very important if you are decreasing your intake of meat because red meat is by far the best source of iron.