All brightly colored fruit peels should be peeled before eating, because their peels are rich in "inflammatory flavonoids". After this substance enters the human body, it is decomposed by intestinal bacteria into substances such as dihydroxybenzoic acid, which strongly inhibits the thyroid function. To a certain extent, it will cause thyroid swelling. 2、Water chestnut peels should not be eaten
Water chestnuts grow in fertile waters, and their peels can accumulate harmful and toxic biological excretions and chemical substances, so they must be peeled, cooked, and then eaten. 3、Persimmon peels should not be eaten
After persimmons ripen, tannic acid exists in the persimmon peel. Under the action of stomach acid, this substance reacts with proteins to form precipitates--"persimmon stones", which will cause various diseases.