Annual Probability of Food Poisoning from Restaurant

The CDC estimates that about 48 million Americans (roughly 1 in 6) get food poisoning each year from all sources. Restaurants and food service establishments are linked to approximately 60% of foodborne illness outbreaks. Given that Americans eat about one-third of their meals outside the home, the estimated annual risk of getting food poisoning from a restaurant is approximately 4%.

The most common causes of restaurant-associated foodborne illness include norovirus (the leading cause), Salmonella, Clostridium perfringens, and Campylobacter. Contributing factors include infected food workers who continue working while ill, inadequate cooking temperatures, improper food storage, cross-contamination, and poor hand hygiene. Studies have found that about 12% of restaurant workers report working while having vomiting or diarrhea.

Restaurant inspection scores can provide some guidance, but studies show only a weak correlation between inspection scores and actual foodborne illness risk. The FDA Food Code recommends specific standards for food temperatures, employee hygiene, and food handling. Consumers can reduce risk by choosing restaurants with good hygiene practices, avoiding undercooked meats, and being cautious with buffets and salad bars.