A half-cup of quinoa in terms of the number of carbohydrates is similar to the amount in one slice of whole wheat bread, but contains a greater amount of fiber and protein. Each 1/2 cup of cooked quinoa contains about 21 grams of carbs, 4 grams of protein and 2 grams of fiber and is gluten-free. Since it is relatively high in protein and fiber, quinoa is much more filling than bread and rice so you feel full longer which in itself can lead to weight loss. For more info on the health benefits of quinoa check out this article by Healthline.