Hi-fructose, or high-fructose corn syrup (HFCS), is a sweetener made from corn starch. It is commonly used in processed foods and beverages due to its cost-effectiveness and ability to enhance flavor. HFCS is sweeter than regular sugar, which allows manufacturers to use less of it while achieving the desired sweetness. The production of hi-fructose involves converting glucose in corn syrup into fructose, resulting in a mixture that is typically 42% to 55% fructose. This sweetener is often found in products like soft drinks, candies, and baked goods, making it a prevalent ingredient in the modern diet.