Vegetables and fruits are excellent for health preservation through diet therapy, and many studies indicate that the peels of many vegetables and fruits are rich in nutrients. Consequently, many people make the generalization that all vegetable and fruit peels are edible. However, sometimes the peels of certain fruits and vegetables can easily cause illness, and in severe cases, lead to poisoning. Therefore, the editor will now tell you which fruit and vegetable peels should absolutely not be eaten.
1. Potato Peel
Potato peels contain "glycoalkaloids," which can cause poisoning when they accumulate in the body to a certain level. Because the poisoning caused by them is chronic and its symptoms are not obvious, it is often overlooked.
When potatoes are cooked with beef, the different concentrations of stomach acid required for digesting these two foods will prolong the time they stay in the stomach, extending the time for gastrointestinal digestion and absorption, and causing gastrointestinal discomfort.
2. Persimmon Peel
In unripe persimmons, tannic acid is mainly found in the flesh, but after ripening, it concentrates in the peel. When tannic acid enters the human body, it reacts with proteins in food under the action of stomach acid to form a precipitate—persimmon stone—which can cause various diseases.
3. Sweet Potato Peel
Sweet potato peels contain a high amount of alkali, and consuming too much can cause gastrointestinal discomfort. The peels of sweet potatoes with brown and black-brown spots are infected with "black spot bacteria," which can produce "ipomeamarone" and "ipomeamarol." When these enter the body, they can damage the liver and cause poisoning. Mild poisoning symptoms include nausea, vomiting, and diarrhea, while severe cases can lead to high fever, headache, shortness of breath, convulsions, vomiting blood, coma, and even death.
4. Water Chestnut Peel
Water chestnuts often grow in paddy fields, and their peels can accumulate harmful biological waste products and chemicals. Additionally, water chestnut peels also contain parasites. Eating unwashed water chestnut peels can lead to illness.
5. Ginkgo Peel
The peel contains toxic substances such as "ginkgolic acid," "ginkgolic acid," "ginkgolic acid," and "ginkgol," which can damage the central nervous system and cause poisoning after entering the human body.
If you also have the habit of eating vegetable and fruit peels, then we must pay attention to the issues mentioned above. This way, we can better protect our health. Therefore, the peels listed above are the ones we should avoid.