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.

While raising animals for food requires large amounts of land, feed, energy, and water, according to a study by the British Broadcasting Corporation (BBC), the vegan diet is not always green either. Fruits and vegetables often cannot be grown in certain locations or during specific seasons, so they must be transported ...

Some studies have shown that those on a plant-based diet are found to have lower plasma vitamin B12 levels and higher levels of vitamin B12 deficiency than those who consume animal products. Vitamin B12 is an important cofactor in DNA synthesis, and deficiency can lead to anemia and severe neurological dysfunction.