The research published in the journal Scientific Reports said that the investigators used pigs for the study and found that cinnamon maintained the integrity of the stomach wall.

"When pigs feed at room temperature, carbon dioxide (CO2) gas increases in their stomach. Cinnamon in their food reduces this gas by decreasing the secretion of gastric acid and pepsin from the stomach walls, which in turn cools the pigs' stomachs during digestion," said Kourosh Kalantar-zadeh, Professor at the RMIT's School of Engineering.

The researchers have developed swallowable gas sensor capsules or smart pills which the by-product of digestion and could provide valuable insights into the functioning and health of the gut.

"Our experiments with pigs and cinnamon show how swallowable gas sensor capsules can help provide new physiological information that will improve our understanding of diet or medicine. They are a highly reliable device for monitoring and diagnosing gastrointestinal disorders," Kalantar-zadeh added.