1. Kiwifruit
Kiwifruit aids digestion and is rich in vitamin C, earning it the title of "King of Fruits." However, Dr. Zhu Xinyi, Associate Chief Physician of Traditional Chinese Medicine at the Affiliated Zhongda Hospital of Southeast University, cautions that kiwifruit has a cold nature. Overconsumption can damage the yang energy of the spleen and stomach, leading to symptoms like abdominal pain and diarrhea.
Additionally, the high levels of vitamin C and pectin in kiwifruit can increase stomach acid and burden the stomach, causing symptoms like abdominal pain, acid reflux, and heartburn. These symptoms may worsen in cold weather. During the current cold season, individuals with stomach ailments (spleen and stomach yang deficiency) should minimize or avoid kiwifruit consumption.
2. Peaches
Peaches are warm in nature with a sweet and sour taste. Rich in vitamins, fruit acids, and minerals like calcium and phosphorus, they stimulate appetite. They boast the highest iron content among fruits. Packed with glucose and fructose, peaches are sweet and juicy, promoting saliva production, intestinal lubrication, blood nourishment, and skin radiance. Among peach varieties, nectarines are particularly beloved.
However, peaches contain large amounts of macromolecular substances. Individuals with weak gastrointestinal function or children may find them difficult to digest and absorb. Overconsumption can actually increase the burden on the digestive system.
3. Fresh Jujubes
Jujubes are often called nature's "vitamin pills," but experts caution against excessive consumption, as it can harm the stomach and intestines. Their high dietary fiber content can irritate the digestive tract when ingested in large quantities, leading to discomfort.Most dietary fiber is concentrated in the thin, tough, and sharp-edged skin of jujubes. If the gastric mucosa is inflamed or ulcerated, consuming them can exacerbate pain and discomfort.However, individuals with weak spleen and stomach function should limit hawthorn consumption, as excessive intake may lead to gastric stones.
Hawthorn's high pectin and tannic acid content can react with stomach acid to form insoluble precipitates. These combine with food residues to create gastric stones, which may cause gastric ulcers, bleeding, or even necrosis and perforation of the stomach wall.However, cooking hawthorn berries reduces the impact of tannic acid.
5. Tomatoes
Tomatoes are highly acidic and may stimulate the stomach to produce more gastric acid. Therefore, eating too many tomatoes can cause symptoms like acid reflux and heartburn. This also applies to tomato-based sauces.
6. Sugarcane
Sugarcane is high in sugar and should not be consumed on an empty stomach, as it can irritate the gastric mucosa, causing stomach pain and bloating. Moreover, excessive sugarcane consumption on an empty stomach may lead to "hyperosmotic coma" due to the sudden influx of high sugar levels into the body.
7. Persimmons
When consumed on an empty stomach, the high stomach acid reacts with persimmon tannins, pectin, and soluble astringents to form gastric persimmon stones. This can cause epigastric pain, nausea, vomiting, gastric distension, gastric ulcers, and even gastric perforation or bleeding.
8. Black jujubes
Black jujubes contain high levels of pectin and tannic acid, which readily bind with stomach acid to form hard masses in the stomach. They should never be consumed in large quantities before bedtime, and individuals with chronic gastrointestinal conditions should avoid them altogether.