Black beans are the new pinto beans, similar in taste and texture. They can almost always be swapped in to replace pinto beans when you want to reduce carbohydrate intake. If you have dry black beans, learn how to cook them over the stove. Nutritional profile: Per ½ cup (cooked, salted) 120 kcal, 8 g of protein, 1 g fat, 21 g carbohydrates, 5.98 g fiber, 0 g sugar, 40.3 mg of calcium, 360 mg potassium, 350 mg sodium.