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.

As you read along, you'll find out that most health conditions developed by vegans are related to vitamin B12 deficiency. Without the familiar sources of vitamin B12, certain bodily functions can be disrupted, leading to anemia, gastritis, stroke, Crohn's disease, and Celiac disease.

Vegetarians and vegans often avoid eating animal products for similar reasons. The largest difference is the degree to which they consider animal products acceptable. For instance, both vegans and vegetarians may exclude meat from their diets for health or environmental reasons.

Animal cruelty or the ethical argument For many people, not having a hand in the exploitation of animals remains the key factor in their decision to go vegan. For some, it's a belief that all sentient creatures have a right to life, and that killing to eat is wrong.