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.

Research has shown that a vegan diet can help do the following: Promote weight loss. Reduce your risk of heart disease by lowering cholesterol levels. Lower your chances of getting certain types of cancer, such as colon cancer.

Due to insufficient time spent on the subject of nutrition, many doctors believe that you cannot get enough protein on a plant-based diet, and that you are at risk of becoming iron and calcium deficient.

So why are people thinking of switching to a vegan diet? For some, it's for ethical reasons. They care for animals and don't want to see them suffer. Others have become more aware of the impact of animal-based diets on the environment.