Olive oil isn't just good for your heart (and your stir-fry veggies), it's also good for your stomach. According to a new study coming out of Spain, virgin olive oil is effective in fighting the bacteria H. pylori, which infects the lining of the stomach and causes millions of cases of gastritis and ulcers each year. The H. pylori bacteria has several strains, but olive oil has been shown to be effective against eight of them, including 3 which are resistant to traditional antibiotics.

The study was done with oil and bacteria in a lab setting, so the next step is to see if the results hold true in the human body.