I bought this stuff called "Arizona No Carb Peach Green Tea" [1] because it seemed like a good idea at the time.  I was in Target thinking, "I'm sorta sick of normal green tea.  I feel like branching out.  How about peach-flavored?"  The reason it's "No Carb" is because it uses sorbitol instead of sugar.  Sorbitol is a sugar alcohol that gets processed very slowly by the body, so it doesn't affect blood sugar levels.  That's all fine and dandy, but let me restate that it's a sugar alcohol.  It doesn't mean it gets you drunk, but it might have something to do with the fact that it tastes like peach schnapps.  I would assume that drinking peach schnapps would normally be a fun and enjoyable thing, but this is far from enjoyable.  Wikipedia says sorbitol is also used in cough syrups.  And there you have it.  I've been drinking peach schnapps cough syrup green tea for lunch.  No wonder I feel like puking. 

[1] It's listed as Diet Peach Green Tea on the Arizona website, but they replaced the word "Diet" with "No Carb" on the bottle I bought.