This kind of food that you think is very "dirty" is actually rich in nutrients

Duck blood is a very common food ingredient, smooth, tasty, fresh and nutritious. For some people, it is delicious, but some people think it tastes too strong and dare not eat it. Some people think it is unclean and are afraid that there will be garbage in the blood vessels, so it is better not to eat it...

So, is duck blood clean? What is the nutritional value of duck blood? What is the difference between boxed duck blood and fresh duck blood?

01

Duck blood is not dirty

You can eat regular duck blood with confidence.

First of all, there is no garbage or toxins in the blood vessels themselves, only the metabolic products of the cells; secondly, these metabolites will be transported to the liver and kidneys by the blood, and then filtered or converted into other substances, which means that generally no metabolites will remain in the blood.

In addition, animal blood used for food must come from the blood of animals that have passed quarantine; in addition, it will also undergo sterilization and other processing during the production process, and will be subject to random inspections by supervisory departments after it is put on the market.

Therefore, blood purchased from regular supermarkets is generally safe, whether it is duck blood, chicken blood or pig blood, you can eat it with confidence. Moreover, it is really recommended to eat it.

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In addition, although duck blood is cheap, its nutritional value is not low. Duck blood is low in fat, low in calories, high in protein, and the most powerful thing is that it supplements iron.

02

What is the nutritional value of duck blood?

Generally speaking, duck blood is high in protein, high in iron, low in purine, low in calories, and low in fat, and is rich in mineral elements such as iron, zinc, potassium, and various vitamins.

(1) High protein and low fat

Animal blood is known as "liquid meat". The protein content in it is similar to that of meat, and the ratio of amino acids is close to that in the human body. It is easy to digest and absorb, but the fat content is much lower than that of meat.

Notice:

Duck blood has a high protein content and will quickly spoil if not stored properly. Therefore, it needs to be refrigerated and consumed as soon as possible.

(2) High-speed rail

The iron in animal muscles, livers, and blood is heme iron that is easily digested and absorbed by the human body. Eating duck blood products is beneficial to the supplement of iron in the human body and has a certain improvement on iron deficiency anemia.

Notice:

However, due to the limited iron content in duck blood, dietary supplements are not enough to cure anemia. At the same time, there are many causes of anemia, and patients must seek medical attention in time, confirm the cause of anemia, and receive treatment according to the doctor's advice.

(3) Low cholesterol

Relatively speaking, the cholesterol content of duck blood products is not high. For healthy people, eating duck blood in moderation will not cause any burden to the body.

Tips:

There is no taboo in eating duck blood. Generally, healthy elderly people, children, and pregnant women can eat duck blood. However, eating a large amount of duck blood may cause the body's iron reserves to be too high and deposited in the organs. Therefore, it should be eaten in moderation. Duck blood should not be eaten more than twice a week, and the amount consumed each time should not exceed 100g . In addition, people who are taking warfarin should not eat it, because warfarin is a vitamin K antagonist, and animal blood contains vitamin K, which may offset the medicinal properties.

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03

What is the difference between fresh duck blood and boxed duck blood?

(1) Manufacturing process

Fresh duck blood: The basic process is to add an anticoagulant to fresh duck blood, package it and refrigerate it, and then add water before cooking to obtain coagulated duck blood.

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Boxed duck blood: an edible blood product made from fresh duck blood with other auxiliary materials or additives, through processes such as mixing, filtering, filling, heating and coagulation, and sterilization.

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Fresh duck blood is brighter in color because it does not go through the steaming process after coagulation. Boxed duck blood is mostly reddish-brown in color and has a more elastic taste because it has gone through the steaming process.

(2) Nutrition

Protein: The protein content of both types of duck blood is around 5g/100g, so there is not much difference between the two.

Iron content: The iron content of fresh duck blood is 13.3 mg/100g, slightly higher than the 10.6 mg/100g of boxed duck blood.

Cholesterol: The cholesterol content of fresh duck blood and boxed duck blood is about 40mg/100g, while the cholesterol content in eggs is about 580mg/100g.

04

My stool turns black after eating. Does this mean my body is poisoned?

In fact, this is normal.

There is a large amount of iron in animal blood. If the iron is not fully absorbed by the human body, it will combine with the sulfide in the large intestine to form black iron sulfide, which will cause the stool to change color and appear black. This is a normal phenomenon.

However, if the stool is still black without eating animal blood; or if the stool is still black three days after eating animal blood, this needs to be taken seriously. It may be gastrointestinal bleeding, and it is best to go to the hospital for a check-up in time.

05

How to buy duck blood?

Choose regular channels to purchase .

Many people mistakenly believe that the fresh duck blood just slaughtered in the farmers' market is fresher and more delicious, but in fact, if the slaughtering and processing process is not standardized, the raw duck blood is easily contaminated by Salmonella. After consumption, it may cause fever, abdominal pain, diarrhea, nausea, and vomiting. Children, the elderly and those with weakened immunity will experience more serious conditions.

Therefore, when buying fresh duck blood, you must choose a regular store with good store hygiene. If you are really worried, it is recommended to buy a regular brand of boxed duck blood tofu.

Having talked about so many benefits of duck blood, today you can rest assured to arrange fried duck blood with leeks, Maoxuewang, duck blood hot pot, and duck blood vermicelli soup!

Review｜Guo Wenping National Meat Food Quality Inspection and Testing Center, Senior Engineer

Source: CCTV Life Circle

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