Can bananas and preserved eggs be eaten together?
Generally speaking, bananas and preserved eggs (pi dan) can be consumed together, but excessive intake should be avoided. The detailed explanation is as follows:

Bananas are rich in potassium, vitamin C, and dietary fiber, which help promote intestinal motility and improve constipation. Preserved eggs contain abundant protein and minerals such as iron and zinc. When consumed together, they can provide a relatively comprehensive range of nutrients to meet the body's needs. Moreover, preserved eggs have a unique texture and flavor that, when combined with the sweetness of bananas, can enhance the taste and diversity of food.
However, excessive consumption of bananas and preserved eggs may cause digestive discomfort. The dietary fiber in bananas can increase the digestive burden on the gastrointestinal tract, possibly causing symptoms such as bloating, abdominal pain, and diarrhea. Preserved eggs contain a high amount of alkaline substances; excessive intake can neutralize stomach acid and impair normal digestive function, further leading to indigestion and abdominal pain. Therefore, it is recommended to avoid excessive consumption of bananas and preserved eggs.
In daily diet, it is recommended to maintain a balanced dietary structure, consume various foods in moderation, and avoid picky eating habits, which can help maintain good health.