Grape-Nuts is a brand of breakfast cereal made from flour, salt and dried yeast, developed in 1897 by C. W. Post, a former patient and later competitor of the 19th-century breakfast food innovator Dr. John Harvey Kellogg. Post's original product was baked as a rigid sheet, then broken into pieces and run through a coffee grinder.
Post Original grape-nuts cereal, with milk
Grape-Nuts ad, 1900
1931 ad published in Pictorial Review magazine
Grape-Nuts ice cream
Breakfast cereal is a breakfast food made from processed cereal grains. It is traditionally eaten as part of breakfast, or a snack food, primarily in Western societies.
Flaked breakfast cereal may be served in milk and topped with fruit such as raspberries.
A Quaker Oats advertisement circa 1900
1910 Kellogg's Corn Flakes advertisement
Breakfast cereals primarily marketed to children, such as Froot Loops, are commonly brightly colored and high in sugar.