Concerns About Eating Undercooked Meat: Infection Risks Explained - Internal Medicine

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Ingestion of raw food?


Hello doctor, I usually cook braised pork at home, but today I got home late from work and saw a pot of what I thought was braised pork and fish balls in the refrigerator.
Since it was late, I didn't heat it up properly and ate three fish balls floating in the braising liquid, only to realize that the meat in the pot was raw...
and the fish balls might also be raw.
Am I at risk of infection? I'm feeling very anxious right now...

123, 30~39 year old female. Ask Date: 2023/03/17

Dr. Lin Wufu reply Internal Medicine


Hello, the chance of parasites is low because the meatballs are usually frozen, and parasites die when frozen.
However, the bacteria in undercooked food can be higher, which may lead to some stomach discomfort or diarrhea, but it is unlikely to cause serious consequences, so there is no need to worry too much.

Reply Date: 2023/03/17

More Info


Eating undercooked meat can indeed pose significant health risks, primarily due to the potential for foodborne illnesses caused by bacteria, viruses, and parasites. When it comes to pork and fish, the risks can vary based on the type of meat and how it has been handled and prepared.

Firstly, undercooked pork can be a source of various pathogens, including Trichinella spiralis, which causes trichinosis, and other bacteria such as Salmonella and E. coli. Trichinosis is particularly associated with undercooked or raw pork, and while it is less common in modern farming practices, it is still a risk if the meat is not properly cooked. Symptoms of trichinosis can include gastrointestinal issues, fever, and muscle pain, which may appear weeks after consuming contaminated meat.

Fish, on the other hand, can carry parasites such as Anisakis, which can cause anisakiasis, a condition that leads to gastrointestinal distress. While cooking fish properly typically kills these parasites, consuming raw or undercooked fish increases the risk of infection.

In your case, since you consumed meat that was not cooked, there is a potential risk of infection, especially if the meat was contaminated. However, the actual risk depends on several factors, including the source of the meat, how it was stored, and whether it had been previously frozen (which can kill certain parasites).
If you are feeling anxious about the possibility of infection, it is important to monitor for any symptoms that may arise in the coming days. Common symptoms of foodborne illnesses can include nausea, vomiting, diarrhea, abdominal cramps, and fever. If you experience any of these symptoms, especially severe ones, it is advisable to seek medical attention promptly.

In terms of prevention, it is crucial to ensure that all meats are cooked to the appropriate internal temperatures. For pork, the USDA recommends cooking it to an internal temperature of at least 145°F (63°C) followed by a three-minute rest time. Fish should also be cooked to an internal temperature of 145°F (63°C) to ensure safety.

Additionally, practicing good food safety habits, such as washing hands, utensils, and surfaces that come into contact with raw meat, can help reduce the risk of cross-contamination. If you are ever in doubt about the safety of a food item, it is best to err on the side of caution and avoid consuming it.

In summary, while there is a risk associated with eating undercooked meat, the likelihood of infection can vary. If you have consumed undercooked meat and are feeling anxious, keep an eye on your health and consult a healthcare professional if you develop any concerning symptoms. Remember, proper cooking and food handling practices are key to preventing foodborne illnesses.

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