Food Poisoning From a Takeaway: Symptoms, What to Do, and How to Report It

Quick answer. If you suspect food poisoning from a takeaway: rest and drink plenty of fluids to avoid dehydration, eat lightly when you can, and let it run its course — most cases clear in a few days. Seek medical help (call NHS 111 in the UK) if you see blood, have a high fever, can’t keep fluids down, show signs of dehydration, or are pregnant, very young, elderly or immunocompromised. Then report the business to the local council’s environmental health team to help protect others.

This article is general information, not medical advice. If you are seriously unwell, contact a healthcare professional or, in an emergency, call your local emergency number.

Food poisoning is illness caused by eating food contaminated with bacteria, viruses, parasites or their toxins. After a takeaway or delivery, it’s natural to suspect the last thing you ate — but the timeline can be misleading, and knowing the typical pattern helps you respond sensibly.

Symptoms and timeline

The common symptoms are nausea, vomiting, stomach cramps, diarrhoea, and sometimes fever or headache. Onset depends on the cause:

1–6 hours: pre-formed toxins, e.g. Staphylococcus aureus, or Bacillus cereus from reheated rice.
12 hours–3 days: Salmonella and Campylobacter (often from undercooked poultry).
1–10 days: some strains of E. coli and other pathogens.

Because of this range, the meal that made you ill is not always the most recent one. Don’t assume — but do note what you ate and when.

What to do at home

Hydrate. Small, frequent sips of water; oral rehydration salts help replace lost salts.
Rest. Let your body recover; avoid alcohol and caffeine.
Eat lightly once you can — plain, bland foods.
Avoid anti-diarrhoeal medication unless advised, as it can prolong some infections.
Stay off work or school until 48 hours after symptoms stop, especially if you handle food yourself.

When to get medical help

Contact a healthcare professional (NHS 111 in the UK) if you have blood in vomit or stool, a high fever, persistent vomiting, signs of dehydration (dizziness, very dark urine, not urinating), symptoms lasting more than a few days, or if you’re in a higher-risk group (pregnant, elderly, an infant, or immunocompromised). If you’d rather speak to a clinician remotely, GeraClinic offers telemedicine consultations in several markets.

How to report the business

Reporting matters even when you can’t prove which meal was responsible — councils look for clusters. To report:

Find the local council for the area the business operates in (via gov.uk).
Contact its food-safety / environmental health team.
Give the date, what you ate, your symptoms, and the onset time.
Keep any packaging or receipt if you still have it.

You can also check whether the business has a poor track record on the official register — see how to check a hygiene rating and our area-by-area hygiene directory. For the formal process, read our guide on how to report a restaurant for poor hygiene.

If you ordered through GeraEats

Contact GeraEats support with your order details. We take food-safety complaints seriously, can issue refunds where appropriate, and feed credible reports into our partner review process. We only onboard restaurants that meet our food-safety standards, and persistent issues affect a partner’s standing on the platform.

Reducing the risk next time

Order from 4–5 rated kitchens where you can, reject food that arrives lukewarm or with tampered packaging, refrigerate leftovers promptly, and reheat thoroughly. See food safety when ordering takeaway and delivery for the full checklist.

Frequently asked questions

How long after eating a takeaway does food poisoning start?

It varies by cause. Some toxins (such as from Staphylococcus aureus or Bacillus cereus on reheated rice) cause symptoms within 1–6 hours. Others, like Salmonella or Campylobacter, take 12 hours to 3 days. A few, like E. coli, can take several days. So a meal you ate two days ago can still be the cause.

What are the main symptoms of food poisoning?

Nausea, vomiting, stomach cramps, diarrhoea, and sometimes a fever, headache or general weakness. Most cases are unpleasant but self-limiting and clear within a few days without treatment beyond rest and fluids.

When should I see a doctor for food poisoning?

Seek medical advice if you have blood in your vomit or stool, a high fever, signs of dehydration, symptoms lasting more than a few days, or if you are pregnant, elderly, very young, or immunocompromised. In the UK you can call NHS 111 for guidance.

How do I report a takeaway that made me ill?

Report it to the food-safety / environmental health team at the local council for the area the business is in. You can find the right council via gov.uk. Provide the date, what you ate, your symptoms and timeline. Reporting helps protect others, even if you can’t prove the source.

Food Poisoning From a Takeaway: What to Do