Food poisoning, also known as foodborne illness, occurs when individuals ingest tainted edibles or drinks, leading to digestive system distress. The contamination responsible for this condition can originate from various sources: microbial invaders like bacteria and viruses, parasitic organisms, harmful toxins, or noxious chemicals that have infiltrated the food or beverage.
1.Nausea
A sensation of discomfort or unease in the stomach often preceding vomiting.
2. Vomiting
Forceful expulsion of stomach contents through the mouth, commonly accompanied by nausea.
3. Diarrhea
Frequent, loose, or watery bowel movements that may be accompanied by abdominal cramping.
4. Fever
Elevated body temperature often associated with systemic infection or inflammation.
5. Stomach pain and cramps
Uncomfortable sensation of tightness or discomfort in the abdominal region.
6. Fatigue
A state of extreme tiredness or exhaustion.
7. Headache and Muscle Aches
Pain or discomfort localised to the head or musculoskeletal system.
How long does food poisoning last?
Indeed, the majority of food poisoning cases tend to resolve within a week, often without necessitating medical intervention. However, it is crucial to remain vigilant and seek medical attention if certain conditions arise:
1. Prolonged symptoms
If symptoms persist beyond a week or intensify in severity, it may indicate a more severe underlying condition requiring medical evaluation and intervention
2. High-risk groups
Individuals belonging to vulnerable population, including young children, elderly individuals, pregnant women, and those with compromised immune systems, should seek medical advice promptly, even if symptoms appear mild or moderate.
3. Complications
If you are experiencing potential complications, such as dehydration, persistent vomiting or diarrhea, or signs of systemic infection, it is essential to consult a healthcare professional promptly.
By promptly addressing concerns and seeking appropriate medical guidance, when necessary, individuals can mitigate risks, expedite recovery, and ensure optimal health outcomes following an episode of food poisoning.
What are the causes of food poisoning?
Food poisoning arises from the contamination of food by either harmful microbes or toxins. The causes can be categorised into microbial and non-microbial sources.
1. Microbial Contamination
This is because of many bacteria such as Campylobacter, Salmonella, Listeria as well as Bacillus cereus and Staphylococcus. There are other microbes such as parasites, like Giardia intestinalis, Cryptosporidium, and Entamoeba histolytica, some viruses such as Rotavirus, Adenovirus, and Parvovirus, which are often transmitted via contaminated water or infected food handlers. Fungi such as Alternaria, Aspergillus, Candida, and Fusarium can produce harmful chemicals contaminating food.
2. Non-Microbial Contamination
These include chemical contaminants like those in fish and shellfish due to algae or bacterial contamination in water sources. Consuming unwashed produce may lead to food poisoning due to the presence of pesticide residues from agricultural practices.
How can you avoid food poisoning?
1. Eat healthy
Proper cooking and heating is essential. Properly cook your food to the recommended temperature to kill harmful bacteria as uncooked food is one of the leading causes of food borne illness.
2. Personal hygiene
Wash your hands, utensils, and surfaces regularly before and after cooking.
3. Safe food handling
Wash fruits and vegetables before eating, cutting, and cooking
4. Food storage and refrigeration
Make sure proper and hygienic refrigeration is used for raw meat, poultry, seafood or eggs.
5. Safe water source
Water used in cooking could be clean and according to the standards by the BIS (Bureau of India standards).
What to eat and what to avoid when you have food poisoning?
It has been recommended in various studies that whenever you have a food borne illness, it is always better to avoid following products as it may worsen your condition, says Dr Pandya.
1. Alcohol
2. Spicy foods
3. Food high in fibre
4. Dairy products
5. Caffeine
6. Fast food products
Foods and beverages to consume during recovery
1. Fluids or oral rehydration solutions (ORS)
Replenish lost fluids and electrolytes to combat dehydration is a common complication of the condition.
2. Bland soups
Opt for easily digestible options such as vegetable or chicken soup, which provide essential nutrients without exacerbating gastrointestinal symptoms.
3. Yogurt
Incorporate probiotic-rich yogurt into your diet to help restore the balance of healthy gut bacteria and promote digestive health.
4. Cooked vegetables
Choose steamed or boiled vegetables over raw options, as they are gentler on the digestive system while still providing valuable nutrients.
5. Fresh fruits
Select fruits such as watermelon, which not only offer hydration but also supply essential vitamins and minerals without causing additional digestive distress.
By prioritising these foods and beverages, individuals can support their recovery from food poisoning, alleviate symptoms, and restore optimal gastrointestinal health more effectively.

