Fennel oil, derived from the seeds of the fennel plant (Foeniculum vulgare), is sometimes used as a flavoring ingredient in processed meat and seafood products. It has a distinctive, sweet, and slightly licorice-like flavor profile. When added to processed meats or seafood, fennel oil can impart a subtle and aromatic taste, infusing a hint of fennel's characteristic flavor. The usage of fennel oil in processed meat and seafood can contribute to the overall flavor complexity, providing a touch of sweetness and herbal notes. The specific application and dosage of fennel oil may vary among different manufacturers and product formulations to achieve the desired flavor balance and appeal.