Concerns About Toxoplasmosis from Edible Flowers in Desserts - Pediatrics

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Hello, doctor.
Today, I had a meal out, and there were two fresh flowers and green leaves as decorations on the cake (which came into contact with the cake).
I felt embarrassed to ask the server for a new one, so I asked if they had washed the flowers and leaves with edible water.
The restaurant assured me that they had washed them with edible water.
Many sources indicate that eating raw vegetables (if contaminated and not washed properly) carries a risk of contracting Toxoplasmosis.
Therefore, I would like to ask the doctor if I should be concerned about the possibility of contamination from the flowers themselves, as I am unsure if the restaurant really washed them thoroughly (they probably just rinsed them roughly with water).
However, I did pick them off and did not eat them.
Even though the risk of infection is low, is there still a possibility that I could contract Toxoplasmosis from this situation? Thank you, doctor, for your clarification.

Ivy, 20~29 year old female. Ask Date: 2022/09/27

Dr. Xiao Kaiwen reply Pediatrics


I believe that after thorough cleaning with water, and since I did not actually consume the decorative flowers and leaves, the chance of contracting a Toxoplasma gondii infection is minimal.
Furthermore, individuals with a normal immune function typically do not exhibit symptoms when infected with Toxoplasma.
Therefore, there is no need for excessive concern.

Reply Date: 2022/09/27

More Info


When it comes to concerns about toxoplasmosis from edible flowers used as decorations on desserts, it's important to understand the nature of the infection and the potential risks involved. Toxoplasmosis is caused by the parasite Toxoplasma gondii, which can be found in various sources, including undercooked meat, contaminated water, and unwashed fruits and vegetables. The primary concern with edible flowers is whether they have been contaminated with the parasite, particularly if they have come into contact with soil or feces from infected animals, such as cats.

In your situation, since the restaurant assured you that the flowers and leaves were washed with edible water, the risk of infection is significantly reduced. However, as you mentioned, there is always a possibility that the flowers could have been contaminated before washing, or that the washing process was not thorough enough. The likelihood of contracting toxoplasmosis from flowers is generally considered low, especially if you did not consume the flowers.

To further mitigate any risk, it's advisable to follow some general food safety practices:
1. Avoid Raw or Unwashed Produce: Always ensure that fruits, vegetables, and edible flowers are thoroughly washed before consumption. If you are unsure about the cleanliness of any food item, it's best to avoid eating it.

2. Cook Food Properly: Cooking food to the appropriate temperatures can kill the Toxoplasma gondii parasite. This is particularly important for meat, but it also applies to any food that may come into contact with contaminated surfaces.

3. Practice Good Hygiene: Wash your hands thoroughly after handling raw foods, and ensure that kitchen surfaces and utensils are clean to prevent cross-contamination.

4. Be Cautious with Pet Owners: If you have cats or are around them, be aware that they can shed Toxoplasma in their feces. Always clean litter boxes carefully and wash your hands afterward.

5. Consult Healthcare Providers: If you have concerns about potential exposure to toxoplasmosis, especially if you are pregnant or immunocompromised, consult a healthcare provider for personalized advice and potential testing.

In summary, while the risk of contracting toxoplasmosis from the edible flowers you encountered is low, it is always prudent to be cautious and practice good food safety habits. If you have any symptoms or concerns following your meal, it would be wise to consult a healthcare professional for further evaluation.

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