1, kelp. When kelp and persimmon are eaten together, calcium ions in kelp will combine with tannic acid in persimmon to produce insoluble combination, which will affect the digestion and absorption of some nutrients and lead to gastrointestinal discomfort. Therefore, kelp should not be eaten with persimmon and other fruits.

2, seaweed. Porphyra is also a food rich in calcium ions. When eaten with persimmon containing too much tannic acid, it will form an insoluble combination, similar to the relationship between kelp and persimmon.

3, sauerkraut. After eating persimmon, please don't drink too much acidic vegetable soup or water, or stomach stones may appear.

4. Persimmon should not be eaten with geese, crabs, sweet potatoes and eggs, otherwise it will cause abdominal pain, vomiting, diarrhea and other symptoms.

5. Persimmons should not be eaten with sweet potatoes and spinach. Sweet potato is a kind of food with more starch. After eating, it will produce a lot of gastric acid in the stomach, while persimmon contains more tannin and pectin. When stomach acid meets tannin and pectin, it will condense to form insoluble lumps-stomach persimmon stone.