Bacillus cereus (B. cereus) bacteria thrive on starches like rice. The toxins from this pesky bacterium can wreak havoc on your digestive system, leading to "fried rice syndrome."

When cooked rice is left unrefrigerated, or leftovers are not handled carefully, conditions are ideal for B. cereus to grow and produce toxins.

Symptoms of fried rice syndrome include nausea, vomiting, diarrhea, and fever. Cases are generally mild and last less than 24 hours, but they can get severe for some.

The best defense against this unpleasant poisoning is to avoid eating spoiled foods. Dine at trusted establishments and know how to properly store and prepare your food at home.

Cook your rice thoroughly in boiling water, and always wash your hands before preparing any meal. Cool and store your leftovers within an hour or two of cooking.

Leftovers should be reheated to a minimum of 165 degrees Fahrenheit (a good rule of thumb for many foods). Use leftovers within three to four days of initial cooking.