Seven diners in northern Japan were sent to the hospital Monday after consuming improperly prepared blowfish testicles and three remained hospitalized today, according to Associated Press reports.
The incident is the latest example of how even expert chefs who work with rare, exotic or long-forgotten food ingredients can inadvertently hurt themselves and others.
In this case, the chef had no license to serve the grilled blowfish testicles the diners consumed, according to the AP. Police said the poisonous nature of the delicacy became apparent when diners developed limb paralysis and breathing trouble and started to lose consciousness.
This is not the first time the infamous fish has made headlines. In October, a Japanese sushi chef died after accidentally eating the highly poisonous liver of the fugu, or puffer fish. While many parts of the fish are tasty and safe, certain organs can be deadly.
The 34-year-old chef was licensed by the Tokyo government to prepare the fugu dish, yet mistakenly thought the liver was safe to eat, according to reporting by The Mainichi Daily News.
Toxic food snafus are not limited to Japan. In late August, a popular Swedish food magazine recalled 10,000 store copies after a mistake in one of its cake recipes left four people sick, dizzy and in pain.
"There was a mistake in a recipe for apple cake. Instead of calling for two pinches of nutmeg it said 20 nutmeg nuts were needed," Matmagasinet's chief editor Ulla Cocke told Agence France-Presse.
Agence France-Presse reported that the magazine had issued leaflet warnings about the dangers of nutmeg poisoning, but recalled the magazines after four adults overdosed.
Earlier this fall, celebrity chef Antony Worrall Thompson Tuesday apologized for a potentially fatal mix-up during a magazine interview when he recommended wild henbane as a great addition to salads.
Thompson said henbane, but he meant fat hen. Fat hen is a weed. Henbane extract was the poison famously poured into Hamlet's father's ear, also often called nightshade.
Nutmeg, henbane and fat hen aren't the only plants that cause confusion. Many herbs have several different names, and many foods have unseen dangers.
The following pages outline just a few toxic plants that share common names with common foods, or common foods that have toxic qualities.
Seeds from fruit trees in the Prunus genus -- cherries, peaches, plums, apricots and almonds -- all produce low levels of cyanogenic glycosides that can lead to cyanide poisoning, according to William J. Lamont Jr., a professor of horticulture at Pennsylvania State University.
But not to worry, Lamont and other horticulturalists noted it would take eating several whole pits to get sick.
Several popular flavors can be dangerous in high doses, too. High doses of licorice can cause high blood pressure and low potassium levels, causing problems for people with heart conditions.
As the Swedish magazine knows, nutmeg, a spice usually enjoyed safely in pinches and teaspoons, can become quite dangerous in large doses.