Articles
WHO estimates 866 million foodborne illnesses a year and urges safer meals
New 2026 estimates cover 42 foodborne hazards and put the everyday value of clean, separate, thoroughly cooked and safely stored food in sharper focus.
On 4 June 2026, the World Health Organization released updated estimates of the global burden of foodborne disease. The analysis covers 2000 to 2021 and estimates that unsafe food caused around 866 million illnesses and 1.52 million deaths in 2021.
Those figures describe the latest year in the study, not a live count of infections in 2026. They are still useful for anyone who cooks: food safety is not only an issue for factories, restaurants or regulators. The WHO says many illnesses can be prevented through safer water, hygiene, pasteurization and everyday food-handling practices.
What the new estimates add
The assessment looks at 42 major foodborne hazards across 194 countries. Biological hazards caused the majority of illnesses, while chemical hazards accounted for a disproportionate share of deaths. The WHO says chemical exposures represented 73% of foodborne-disease deaths in 2021, with inorganic arsenic and lead responsible for the largest shares of those chemical deaths in the analysis.
Children under five remain especially vulnerable. They represented 9% of the world’s population but carried nearly one third of the health burden from foodborne disease. That is why the release pairs a global estimate with a practical message: prevention has to work at every point in the food chain, including the home kitchen.
The kitchen habits that still matter
The WHO’s Five Keys to Safer Food provide a compact routine for home cooks. They are not a substitute for a local food recall notice or medical advice, but they are a useful baseline when preparing an ordinary meal:
- Keep clean. Wash hands before handling food and during preparation, and clean work surfaces and equipment.
- Separate raw and cooked. Keep raw meat, poultry, seafood and eggs away from ready-to-eat food, using separate equipment where possible.
- Cook thoroughly. Give particular care to meat, poultry, eggs and seafood, and reheat cooked food thoroughly rather than relying on appearance alone.
- Keep food at safe temperatures. Refrigerate foods that need chilling and do not leave cooked food at room temperature longer than necessary.
- Use safe water and raw materials. Choose safe water and sound ingredients, and take care with foods that are eaten raw.
These steps address biological hazards that can multiply or spread during preparation. They do not remove every chemical risk: the WHO notes that some contaminants enter the food chain before food reaches the kitchen and can be difficult or impossible to remove. For cooks, that is a reason to follow official alerts, use trusted ingredients and avoid treating one kitchen habit as a complete safety system.
Why the release is relevant now
The estimates give governments data to rank risks and target prevention, but they also make the scale of the issue easier to understand at meal level. A clean board, separation between raw and ready-to-eat foods, thorough cooking, safe temperatures and safe water are small actions. Together, they are the practical end of the food-safety system the WHO is asking countries to strengthen.
The WHO released the estimates ahead of World Food Safety Day 2026, whose theme is “From burden to solutions – safe food everywhere”. The underlying data cover 2000 to 2021, while the Five Keys remain a current, simple checklist for everyday food preparation.
Sources
World Health Organization, ‘Unsafe food causes 866 million illnesses and 1.5 million deaths annually, young children at highest risk’ (published 4 June 2026):
https://www.who.int/news/item/04-06-2026-unsafe-food-causes-866-million-illnesses-and-1.5-million-deaths-annually--young-children-at-highest-risk
WHO Five Keys to Safer Food:
https://www.who.int/activities/promoting-safe-food-handling