Olive oil, nearly 75% of which originates in Spain, is widely recognized as a source of healthy fats, but the light gray foliage of olive trees may also represent a treasure trove of substances that afford potential health benefits.
Like most plants, olive leaves contain an array of phytochemicals. Extracts of olive leaves (OLE) contain secoiridoids (primarily, oleuropein, oleosid, and oleurosid) and polyphenols, including 3-hydroxytyrosol (HT) and its derivatives. The profile of these and other…