What is the grossest ingredient in orange soda?

One of the grossest ingredients often found in orange soda is the artificial flavoring known as "ethyl butyrate," which is used to replicate the taste of orange. While it’s generally recognized as safe for consumption, the idea of synthetic ingredients derived from chemicals can be off-putting to some. Additionally, high fructose corn syrup, commonly used as a sweetener in sodas, can also be considered unappealing due to its association with health issues.