Vegans do not eat or use other animal products or by-products such as eggs, dairy products and honey. Beeswax, leather, fur, wool, and cosmetics derived from animals are also not part of a vegan lifestyle. Vegans choose to adopt this diet for varied reasons, among them health, ethical, political and environmental reasons. Some vegans hold the belief that by consuming animal products such as eggs and dairy products, though they are not technically meat, provides direct support to the meat industry. It is important for vegans to be educated and knowledgeable in order to maintain optimum health, and it is accepted by the American Dietetic Association that people can thrive on a vegan diet, attaining sufficient nutrition and health through a balanced diet. Vegans may wish to supplement certain nutrients such as iron, calcium and vitamin B 12, which are primarily found in animal products. There are health benefits known to result from a vegan diet, including lowered cholesterol, risk of heart disease, cancers and digestive disorders.