Ice Cream and Sinus Infections Reader Feedback
These two "ingredients" are basically tree saps from some South American trees and they are basically the same thing. They are commonly used to "naturally flavor" many foods and also widely used in perfumes. This probably explains it if you are allergic to perfumes and scents, and/or if ice cream bothers your sinuses. It contains compounds that are chemically the same or similar to cinnamon, clove, vanilla, citrus, etc and can be extracted and used much more cheaply than the real thing.
Looking over the chemical names listed above for the Burger King Strawberry Milkshake, I recognize many of those chemical compounds as easily derivable from Balsam of Peru and Balsam of Tolu. (http://www.rain-tree.com/balsam.htm)
They can put it in ANY food or beverage and label it simply as "natural flavor", so it can be in anything you eat that says "natural flavor" or even potentially "artificial flavor". It is also the number two contact dermatitis allergen at 15% of skin all tests showing "positive" results, just behind nickel. If 15% of people's skin is allergic to it, logic would dictate that the rest of their body probably would not like it either if ingested or inhaled, especially the delicate mucous membranes of sinuses and digestive tracts.
Research it yourself and see if avoiding "natural flavors" is worth it.
Also, petition your local government and tell them to make manufacturers label EVERYTHING that is in their foods and personal care products! If it is going in or on us, we have a right to know what is in it!