The document discusses different types of bread. It describes white bread as made from just the endosperm of wheat, while brown bread contains 10% bran. Whole wheat or wholemeal bread contains the entire wheat grain. Wheat germ bread has added wheat germ for flavor. Roti, chapatti and naan are breads eaten in South Asia. Rye bread uses rye flour and is popular in Scandinavia, Germany and Eastern Europe. Unleavened matzah bread for Passover does not use yeast. Sourdough uses a starter made from flour and water.