Grape-Nuts Grape-Nuts Grape-Nuts is a breakfast cereal developed in 1897 by C. W. Post, a former patient and later competitor of the 19th-century breakfast food innovator, Dr. John Harvey Kellogg. The cereal originally prepared by C. W. Post when developing the product was a batter that came from the oven as a rigid sheet. He then broke the sheet into pieces and ran them through a coffee grinder to produce the "nut"-sized kernels. Despite the name, the cereal contains neither grapes nor nuts; it is made with wheat and barley. Post believed that glucose (which he called "grape sugar") formed in
Pepsi-Cola Made with Real Sugar flavor more in line with "regular" Mountain Dew. A third batch was released on July 31, 2010, again as a five-week limited availability. On October 12, Consumerist.com reported that Pepsi had decided to continue offering the Throwback line as long as consumers continue to buy it. A fourth batch appeared in stores in late December 2010, removing the limited edition logo from the packaging. At the same time, Sierra Mist, a drink that debuted in 1999 and had always been made with high fructose corn syrup, also had a sugar-based formula released under the name "Sierra Mist Natural", which was