Vegans avoid consuming or using animal products to help protect animals and the environment. They do not eat meat, dairy or eggs and also avoid using clothing, cosmetics or home products that contain animal ingredients or have been tested on animals. Going vegan helps reduce pollution, land and water use compared to a meat-based diet. It can also provide health benefits like reducing the risk of obesity, heart disease, diabetes and cancer since plant-based diets tend to be lower in saturated fat and higher in fiber and antioxidants. Vegans need to ensure they get enough vitamin B12, which is found in animal products, through supplements or fortified foods.