The breakfast cereal giant has announced it will hike the prices of products like Corn Flakes, Pop-Tarts and Pringles to protect margins amid expectations of high-cost inflation in 2023.The flakes may be low in fat, but they make up for that in the amount of sugar present in them, making them unhealthy for daily consumption. Corn flakes contain high levels of sugar in the form of high fructose corn syrup (HFCS).