Naringin, citrus fruit extract, plant extract Naringin is a flavanone glycoside. It is ... citrus (esp. grapefruit) and other juices with medications is contraindicated. [2]Naringin, followed by rutin, was the most potent flavonoid inhibitor ... times sweeter than sugar at threshold concentrations[4]. Naringin, Citrus fruit extract 10236-47 ...