Malt o meal marshmallow mateys cereal comes in a 1 ounce pack. It contains wheat ingredients. Grains used in this product contain traces of soybeans. It is a great source of vitamins and minerals. Malt o meal’s history of consistent quality and service is a tradition since 1919.Founded by John s. Campbell, malt o meal originally manufactured hot wheat cereal. In 1965, the company introduced its first ready to eat cereals. Today, the company manufactures three varieties of hot wheat cereal and many varieties of ready to eat cereal.