system
Given the following post, respond as if you're commenting on Reddit:
human
Why do chewing gums that have their main ingredient as sugar/corn syrup still include Aspartame in their recipe?

I've noticed this in a few products, but the one I have in front of me is Big League Chew...

- Sugar
- Gum Base
- Corn Syrup
- Glycerol
- Natural and artificial flavors
- Soy lethicin
- Acesulfame-Potassium
- Aspartame
- BHT
- Corn Starch, Color (Allura Red)

Wouldn't the sugar and corn syrup sweeten it enough? Is there a preservative reason, or some other chemistry issue?

Edit: I wasn't sure if this should be tagged as Biology or Chemistry. I settled on Biology since it involved taste. Hope that's ok.
gpt
Here's a quotation from Wrigley on the subject: 

The Wrigley Company utilises the high intensity sweetener, Aspartame,
in a number of its products - as the primary sweetener in some of our
sugarfree brands and as a flavour enhancer in some of our sugar-sweetened brands. As an ingredient, Aspartame has the added benefit of
providing an especially long-lasting flavour.