Authentic duck blood vermicelli soup is made of smooth vermicelli, fresh duck blood and thick old duck soup. When eating, you can also match duck liver and duck intestines as you like. According to experts, duck blood vermicelli has many edible functions. Duck blood vermicelli soup is rich in carbohydrates and protein, but low in fat. If you eat it with vegetables or fruits, the nutrition will be more balanced. What's more worth mentioning is that duck blood vermicelli soup also has the benefits of weight control. Because starch changed into denatured starch during the production of vermicelli, the glycemic index decreased. It is not only beneficial to people with hyperglycemia, but also helps people lose weight.