I bought this jar and add an equal amount of chicken broth to Water ever amount I am cooking. If you like tortilla soup, this is great and light! It's not very thick, and the chicken broth waters it down even more.
As for the strict diets, my doctor's instructions stated that anything that can be sipped through a straw at room temperature qualifies as a liquid. For example, I've seen cream of wheat on some posts, yogurt, pudding, etc. These are really just soft solids because at room temperature, they do not lose their consistency like Jello.