Do Certain Foods Really Cause Worm Infections?
You’ve probably heard someone say, “Don’t eat that—you’ll get worms!” But how true is that?
The truth is, foods do not create worms. Worm infections occur when parasite eggs or larvae enter the body through contaminated food, water, soil, or unclean hands.
Different intestinal worms spread in different ways. For example:
● Pinworms (Threadworms): Spread through contaminated hands and surfaces.
● Roundworms (Ascaris) and Whipworms (Trichuris): Spread by swallowing parasite eggs from contaminated food, water, hands, or soil.
● Certain tapeworms: Can be transmitted by eating raw or undercooked beef, pork, or freshwater fish containing parasite larvae.
● Hookworms: Usually enter the body when larvae in contaminated soil penetrate the skin, especially when walking barefoot.
Most intestinal worm infections are linked to poor sanitation, inadequate personal hygiene, and contaminated food or water. Practising good food hygiene is one of the best ways to help reduce the risk of worm infections.
Love Raw or Undercooked Foods? Know the Risks First
Some parasites can be transmitted through raw or undercooked meat, freshwater fish, or seafood. Examples include tapeworms, roundworms and whipworms.
While routine deworming helps treat many common intestinal worms, it does not protect against all foodborne parasites. Some parasites acquired from raw or undercooked meat, freshwater fish, or seafood require different treatment. This is why cooking food thoroughly and following safe food preparation practices are important to help reduce the risk of infection.
To help reduce the risk:
● Cook meat, poultry, fish, and seafood thoroughly.
● Avoid eating raw or undercooked animal products unless they are prepared according to proper food safety standards.
● Buy meat and seafood from clean and reputable sources.
Don’t Forget to Wash Fruits and Vegetables
Fresh fruits and vegetables are packed with vitamins, minerals, and fibre, but they should always be washed before eating.
During farming, transport, or handling, produce may become contaminated with soil or unsafe water. Washing fruits and vegetables thoroughly under clean running water helps remove dirt and potential contaminants before they are eaten, especially when consumed raw.
Clean Hands Are Just as Important as Clean Food
Even when food is prepared safely, unwashed hands can transfer parasite eggs to the mouth. Children are especially vulnerable because they often play outdoors, touch different surfaces, and may forget to wash their hands before eating.
Parents can help reduce the risk by encouraging children to:
● Wash their hands with soap and water before meals.
● Wash their hands after using the toilet.
● Keep their fingernails clean and trimmed.
● Avoid putting dirty fingers or objects into their mouths.
Building these habits from a young age helps reduce the risk of worm infections and many other infectious diseases.
Healthy Eating and Good Hygiene Go Hand in Hand
A balanced diet supports healthy growth and a strong immune system, but it cannot prevent or treat worm infections on its own.
The best protection comes from combining:
● Good food hygiene.
● Safe food preparation.
● Clean drinking water.
● Regular handwashing.
● Proper sanitation.
● Deworming when recommended by a healthcare professional.
If you have concerns about worm infections or whether deworming is appropriate for your child, speak to your doctor, pharmacists or healthcare professional for personalised advice.
Key Takeaway
There is no single “worm-causing food.” The real risk comes from contaminated food, water, soil, or unclean hands. By practising good food hygiene, washing your hands regularly, cooking food thoroughly, and choosing safe food, you can significantly reduce the risk of worm infections and help protect your family’s health and well-being.
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References
● Centres for Disease Control and Prevention. (2024). About ascariasis. https://www.cdc.gov/sth/about/ascariasis.html
● Centres for Disease Control and Prevention. (2024). About hookworm. https://www.cdc.gov/sth/about/hookworm.html
● Centres for Disease Control and Prevention. (2024). About human tapeworm (taeniasis). https://www.cdc.gov/taeniasis/about/index.html
● Centres for Disease Control and Prevention. (2024). About pinworm infection. https://www.cdc.gov/pinworm/about/index.html
● Centres for Disease Control and Prevention. (2024). About whipworms. https://www.cdc.gov/sth/about/whipworms.html
● Craig, N. (2012). Fish tapeworm and sushi. Canadian Family Physician, 58(6), 654. https://pmc.ncbi.nlm.nih.gov/articles/PMC3374688/
● World Health Organisation. (2023). Soil-transmitted helminth infections. https://www.who.int/news-room/fact-sheets/detail/soil-transmitted-helminth-infections
