Food poisoning is a common foodborne illness—a non-infectious acute or subacute condition caused by consuming toxic or contaminated food. Regardless of the cause, the outcome is often painful, ranging from mild symptoms like nausea, vomiting, abdominal pain, and diarrhea to severe cases that can even be life-threatening. Preventing food poisoning requires attention to detail to avoid unnecessary trouble.
These foods are prone to causing poisoning:
1. Bacterial food poisoning: Spoiled fish, meat, dairy, eggs, and their products; leftovers.
2. Mycotoxin and moldy food poisoning: Consuming moldy corn, sweet potatoes, or wheat infected with Fusarium head blight.
3. Toxic plants and animals: Poisonous pufferfish, shellfish, toxic mushrooms, cassava, kidney beans, fresh daylilies, and sprouted potatoes.
4. Chemical food poisoning: Foods contaminated with arsenic, nitrites, pesticides, or other toxins.
The causes of these toxic foods are also complex. Primarily, during food production, processing, storage, transportation, and sales, improper equipment layout, inefficient production processes, inadequate sanitation facilities, and insufficient hygiene protocols—combined with food handlers suffering from certain illnesses or poor hygiene practices—lead to bacterial contamination. Examples include Salmonella, Shigella, and Staphylococcus aureus.
Symptoms of Food Poisoning
(1) Since no person-to-person transmission occurs, outbreaks are sudden, with short incubation periods and rapid onset. Multiple cases may emerge within a brief timeframe, resulting in a steep rise in the incidence curve.
(2) Affected individuals typically exhibit similar clinical symptoms, commonly including nausea, vomiting, abdominal pain, and diarrhea.
(3) Onset is linked to specific foods. Patients have recently consumed the same contaminated food, with illness confined to those who ate it. Symptoms cease rapidly once consumption stops, and the incidence curve declines sharply after its initial surge.
(4) Food poisoning patients are not contagious to healthy individuals.
What to Do for Food Poisoning
1. Rehydrate: Primarily with cool boiled water or other clear liquids to replenish electrolytes (potassium, sodium, glucose) lost through vomiting and diarrhea. Do not stop diarrhea immediately; allow toxins to be expelled before consulting a doctor or seeking hospital treatment.
2. Induce vomiting: If ingestion occurred within 1-2 hours, induce vomiting. Immediately mix 20g salt with 200ml boiled water, cool, and drink in one go. Repeat if ineffective to rapidly induce vomiting. Alternatively, crush 100g fresh ginger, extract juice, and mix with 200ml warm water to drink.
3. Inducing Bowel Movement: If the patient ingested contaminated food over 2 to 3 hours ago but remains alert, administer a laxative to expedite expulsion of the contaminated food.Typically, decoct 30 grams of rhubarb for a single dose. Elderly patients may opt for 20 grams of sodium sulfate (Epsom salt) dissolved in boiling water for mild laxation. Elderly individuals in good physical condition may also use 15 grams of senna leaves, either decocted or dissolved in boiling water, to achieve the same purgative effect.
4. Detoxification: For food poisoning caused by spoiled fish, shrimp, or crab, dilute 100ml of vinegar with 200ml of water and consume the entire mixture at once. Alternatively, decoct 30g of perilla and 10g of raw licorice root for oral administration. If spoiled preservatives or beverages are ingested, the best remedy is to administer fresh milk or other protein-rich liquids orally.