Hawthorn can't be eaten with pig liver, which will destroy vitamin C in the body. Hawthorn is rich in vitamin C, and pig liver contains trace elements such as copper, iron and zinc. When vitamin C meets metal ions, it will accelerate oxidative damage and reduce its nutritional value. Therefore, eating pork liver is not suitable for eating hawthorn.

Eating hawthorn with seafood and fish will cause constipation and abdominal pain. Because general seafood (including fish, shrimp and algae) is rich in protein besides minerals such as calcium, iron, phosphorus and iodine, and hawthorn (including pomegranate and other fruits) contains tannic acid. If eaten together, this substance will synthesize tannic acid protein, which has astringent effect, forms constipation, blocks the intestine, increases the passive absorption of intestinal toxins, and causes abdominal pain, nausea, vomiting and other symptoms.

Hawthorn is eaten with cucumber, pumpkin, bamboo shoots and carrots. Because pumpkin, cucumber, bamboo shoots and carrots all contain vitamin C-decomposing enzymes, if they are eaten together with hawthorn, vitamin C will be decomposed and destroyed, reducing the nutritional value.

Hawthorn can't be eaten with too much food in protein, which will harm the gastric mucosa.

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