Lori what an interesting article - I love the variety of your soups. Have you made them all yourself, and if so which one do you prefer?
I notice the cabbage and Japanese soups have sugar substitute , and wonder why they need sugar. I make light vegetable soups using many of the ingredients you mention for the cabbage one (depends what I've got in stock! - just noticed that was a good pun
) but I don't tend to put sugar in them - or, for that matter, Worcershire sauce.
I've never come across konnayaku before, and would be surprised if I can find it round here, but will ask around - it would be an interesting soup to try, very different to the pulse and/or vegetable based soups I normally make.