Grain Berry Cinnamon Frosted Shredded Wheat Is The First Breakfast Cereal To Contain Amazing Onyx. A Tannin Rich Food. All Natural New Sorghum Grain Developed By Texas A&M University, Based On Ancient Black And Hi-Tannin Sorghum Varieties That, Together In One Plant, Contain A More Powerful Combination Of Antioxidants That Combat A Whole Spectrum Of Free Radical Threats To Our Bodies (See Side Panel For Information). In Addition To Whole Grain Oats And Wheat, Each Grain Berry Cereal Contains Whole Grain Onyx. Each Grain Berry Cereal Contains Less Sugar Than Other Brands. Plus Our Whole Grain Blend With Onyx Sorghum Can Help Slow The Absorbance Of Sugar Into The Blood Stream.