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- Jurassic Park Crunch – General Mills (1997)
- Jets – General Mills (c. late-1950s to early-1970s)
- Just Right – Kellogg's
- Janoffie pie – Sweden (Mid 1914– July 1926)
- Jhurjhur Sweeties - Sweden (1907–1999)
Read more about this topic: List Of Breakfast Cereals