I enjoy eating animal liver and blood, but many people say these foods are unhealthy. Is this true or false? (Ha, 34 years old, Hanoi )
Reply:
Liver is a highly nutritious food, rich in iron, making it beneficial for people with anemia or general weakness. However, it can also contain many toxins because the liver is responsible for detoxifying the body and is easily contaminated with impurities and parasites such as worms and flukes.
Furthermore, animal livers process antibiotics or growth hormones introduced into the animal's body during livestock farming. Residues of these substances can remain in the liver during metabolism, affecting health if consumed in large quantities.
Liver is also a food with a very high cholesterol content, which can cause atherosclerosis, hypertension, and coronary artery disease. Therefore, people with obesity, cardiovascular disease, and high blood pressure need to be cautious when eating it.
To avoid poisoning, liver should be thoroughly cooked before eating to eliminate any remaining toxins. Additionally, choose fresh liver from reputable sources with clear origins; it's even better if the animal was raised in clean conditions.
Similarly, blood is also a food rich in iron, which helps replenish blood. However, it is also a difficult food to digest. It is especially important to avoid eating blood pudding as it contains many dangerous pathogens such as worms, streptococci, and can negatively impact health.
In general, liver and blood are both nutritious foods that you can eat, but you shouldn't consume them too often. Furthermore, it's essential to ensure they are thoroughly cooked and properly prepared to avoid harm.
Assoc. Prof. Dr. Nguyen Duy Thinh
Institute of Biotechnology and Food, Hanoi University of Science and Technology
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