What are the symptoms of potato poisoning?

Nov 25, 2025 Source: Cainiu Health

Dr. Huang Yuhong

Introduction

In general, symptoms of potato poisoning mainly include nausea and vomiting, abdominal pain and diarrhea, dizziness and headache, itchy throat, difficulty breathing, etc. If any discomfort occurs, it is recommended to seek prompt medical treatment at a正规 hospital. Potatoes should be stored in a dark, cool place during daily storage; discard immediately if sprouting or green discoloration of the skin is observed—do not consume. If accidentally consumed in small amounts,

Under normal circumstances, symptoms of potato poisoning mainly include nausea and vomiting, abdominal pain and diarrhea, dizziness and headache, itchy throat, difficulty breathing, etc. If any discomfort occurs, it is recommended to seek timely medical treatment at a正规 hospital. The specific analysis is as follows:

1. Nausea and Vomiting

Sprouted or green potatoes contain large amounts of solanine, a toxin that irritates the gastrointestinal mucosa and causes smooth muscle spasms. Those poisoned first experience nausea, followed by vomiting. The vomit typically consists of stomach contents, and in severe cases may include bile. The frequency of vomiting increases with the severity of poisoning.

2. Abdominal Pain and Diarrhea

Solanine damages the protective barrier of the gastrointestinal mucosa, leading to mucosal congestion and edema, which impairs digestive function. Patients experience paroxysmal cramping abdominal pain, usually around the navel, accompanied by diarrhea. Stools are often watery; some individuals may pass mucus-containing stools.

3. Dizziness and Headache

Once absorbed into the bloodstream, solanine affects the central nervous system and interferes with neural signal transmission. Poisoned individuals often feel mental fogginess and head fullness or pressure. In severe cases, blurred vision, unsteadiness, and even confusion may occur.

4. Itchy Throat

When solanine comes into contact with the throat mucosa, it triggers an allergic-like reaction and irritation locally. Patients experience noticeable throat itching, dryness, and a foreign body sensation; some may develop difficulty swallowing.

5. Difficulty Breathing

In severe poisoning, solanine may suppress the respiratory center or cause laryngeal edema that obstructs the airway. Patients exhibit increased respiratory rate and shallow breathing, feeling short of air. In serious cases, cyanosis of the lips, flaring of the nostrils may appear, requiring immediate emergency treatment.

To store potatoes safely in daily life, keep them in a cool, dark place. Discard immediately if sprouting or skin greening is observed—do not consume. If a small amount is accidentally ingested, drink plenty of water to help flush out the toxin. Seek immediate medical attention if symptoms become apparent, and inform the doctor about the potato consumption for prompt and appropriate treatment.

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Is the calcium content of potatoes high?

The calcium content in potatoes is approximately 10–20 mg per 100 grams. While not as high as calcium-rich foods like milk or soy products, it is still higher than that of some leafy vegetables. As a common staple food or ingredient in daily meals, moderate consumption of potatoes can contribute a certain amount of calcium to the body, while also providing carbohydrates, dietary fiber, and vitamin C, among other nutrients.

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What are the disadvantages of eating potato and millet porridge?

Disadvantages of consuming potato and millet porridge include nutritional imbalance due to limited nutrient variety, increased digestive burden from excessive consumption, high glycemic index causing blood sugar fluctuations, irritation of the gastrointestinal mucosa from eating it raw, cold, or in excess, and possible allergic reactions in some individuals. If you experience severe abdominal pain, diarrhea, rashes, or a sudden rise in blood sugar, please seek medical attention promptly.

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Can potato slices reduce swelling?

In general, potato slices have a certain anti-swelling effect. Before use, select fresh, plump potatoes that are not sprouted or green. Wash them thoroughly and cut into thin slices 2–3 mm thick, ensuring the surface is smooth and even. Clean the skin over the swollen area before application, then gently place the potato slice over it. Replace the slice every 15 to 20 minutes, avoiding prolonged application to prevent skin irritation.

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Can you still eat dried sweet potato if it has grown mold?

In general, moldy dried sweet potato should not be consumed. When purchasing dried sweet potato, choose products with natural color, dry texture, and no signs of mold or unpleasant odor. After bringing it home, store it in an airtight container in a cool, dry, well-ventilated place, away from direct sunlight and moisture. During the rainy season, consider placing a desiccant in the container.