What should preserved eggs (pineapple eggs) not be eaten with?

Jul 13, 2024 Source: Cainiu Health
Disease description:

I quite enjoy eating preserved duck eggs (pi dan), but recently I've had diarrhea after eating them, though I'm not sure what I consumed them with. I'd like to ask the doctor: what foods should not be eaten together with preserved duck eggs?

Doctor's answer (1)
Dr. Shen Yonghua
Preserved eggs (also known as pidan or thousand-year eggs) are a unique type of food that, although nutritious, should be consumed with caution to avoid combining them with certain other foods that may cause physical discomfort or poisoning. Specifically: 1. **Soft-shelled turtle (Amyda sinensis):** The lead contained in preserved eggs may affect the nutritional value of soft-shelled turtle meat, and consuming large quantities together may potentially lead to poisoning. 2. **Eel:** Eating preserved eggs together with eel may cause food poisoning, leading to symptoms such as diarrhea. 3. **Brown sugar:** As preserved eggs are alkaline-forming foods and brown sugar is acidic, consuming them together may disrupt the acid-base balance in the body, potentially causing gastrointestinal discomfort or mild food poisoning. 4. **Plums:** The lead in preserved eggs may react with certain components present in plums, possibly causing physical discomfort. 5. **Vinegar:** Combining preserved eggs with vinegar may result in the formation of indigestible precipitates, which in severe cases could lead to poisoning.