It has some carb, though I still lost weight on my low carb diet. for preparation, I heat little broth in the microwave then add the dry rice, mix it, leave it for 15 min, then ready to eat. I did leave it for few hours to overnight one time, came perfect, just add little olive oil to fluff it up. love how this rice absorbs the flavors you add to it. I did hydrate it with chicken broth, it was yummy. I don't think it is super filling by it self, but when you mis it with cauliflower rice and make egg fried rice with it, super good and very filling. It does have a texture of pasta more than rice, but still good. I recommend. It is expensive, though for the amount, only 2 bags inside the box. If it smells fishy (doesn't bother me), just add seasoning. That would take the smell away. Atleast for me.