Could the sweetened drinks we're consuming be making us feel a little more anxious? A 2022 study looking at the effects of the artificial sweetener aspartame on mice suggests that it's a possibility that's worth investigating further.
My theory, and again it's just a theory, anxiousness from things you eat is your body stressing out that you can't process it or something. Of course, it needs more studies, but you could inherit slight allergies and the learned behavior.
My understanding is your body processes aspartame just fine. It's just much sweeter than cane sugar so you have to use less than a calorie to achieve the same effect as a hundred calories of cane sugar.
That might be true? I just know how it affects me, Human studies are just people like you and me giving their feedback as to whether or not something gives them symptoms or not. I definitely get that angst with aspertame. So, even if it's a small percentage that are effected by it, I would be included in that small percentage.