Nutritional Information: River shrimp, also known as freshwater shrimp, is a good source of protein, low in calories, and contain minimal carbohydrates. A serving of 3 ounces (85 grams) provides • around 80 calories • less than 1 gram of fat • approximately 20 grams of protein • B12 Vitamins • And minerals like phosphorus and iodine • less than 1 gram • negligible carbohydrates • Also contains minerals like phosphorus, iodine, and small amounts of selenium.