red lentil soup. You can find also find green, black, and brown lentils, and they all pack a nutritional punch. Nutritional profile: Per 1/4 cup (dried) 100 kcal, 8 g of protein, 0.5 g fat, 23 g carbohydrates, 7 g fiber, 0 g sugar, 20 mg of calcium, 260 mg potassium, 10.2 mg sodium.