It tastes completely unsalted. It is to the regular version of canned soup as tomato water is to bloody Mary mix.
Actually, it has 50 mg of salt, presumably from what naturally occurs in the other ingredients, but there are no salt-like ingredients listed, and 50 mg is nothing compared to the several hundred mg in the regular ones. The label advises "season to your taste."
For the tuna casserole sauce, I did add a very little salt, but I seasoned it primarily with pepper, herbes de Provence, and a little Accent, and I added sherry and sautéed onion, celery, garlic, and mushroom. It turned out well.
I would certainly buy the unsalted cream of mushroom again for similar sauces and casseroles, and the unsalted cream of chicken, although I think I'd use that less, and if they come out with an unsalted cream of celery, I'd buy that too, for the same purposes. For soups really meant to be eaten as soups (tomato, chowder, chicken noodle, etc.), I think you'd have to add quite a bit of salt to enjoy them. I don't imagine Campbell's is planning to come out with unsalted versions of all its soups. Seems like it would defeat the convenience aspect.
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