No soup for you because you ran headlong into a dietitian who thinks every patient is an idiot. If you account for the fluid, stick with homemade or a canned low sodium version, keep track of the ingredients so you don't get overloaded on phos or K, and don't have more than a cup or small bowlful, it's fine. For that matter, in small amounts, you can have cheese, peanut butter, chocolate, citrus fruit, etc. The only thing you have to avoid totally is starfruit, because of the neurotoxin in it that bad kidneys don't clear. If you keep track of your monthly labs and your mineral totals for the day, a little bit of anything you really want isn't off limits.Either that or you ran into a relative of Seinfeld's Soup Nazi.
I endorse IHD's pro soup agenda!