Sacramental bread adopted the use of unleavened bread due to Liturgical Latinisation. A Host is a portion of bread used for Holy Communion in many Christian churches. In Western Christianity the host is often a thin, round unleavened wafer. In the Roman Rite, unleavened bread is used as in the Jewish Passover or Feast of Unleavened Bread. The Code of Canon Law, Canon 924 requires that the hosts be made from wheat flour and water only and recently made so that there is no danger of spoiling. Hosts are often made by nuns as a means of supporting their religious communities. However,
Matzo Whole wheat, bran and organic matzo are also available. Chocolate-covered matzo is a favorite among children, although some consider it "enriched matzo" and will not eat it during the Passover holiday. A quite different flat confection of chocolate and nuts that resembles matzo is sometimes called "chocolate matzo". Matzo contains typically 111 calories per 1-ounce/28g (USDA Nutrient Database), about the same as rye crispbread. "Shĕmura" ("guarded") matzo ( "matsa shĕmura") is made from grain that has been under special supervision from the time it was harvested to ensure that no fermentation has occurred, and that it is suitable for eating