Olive leaf powder is produced from the foliage of the same
Mediterranean tree that olive oil comes from, only the latter involves
the fruit. While both lend a balsamic and nutty flavor to foods, the
powdered leaf is easily encapsulated and taken as a dietary supplement.
Just as good quality olive oil has a reputation for providing healthy
dietary fats and antioxidant compounds, olive leaf contains similar
agents, namely hydroxytyrosol, ligustroside and oleuropein. These
free-radical scavengers are so potent that they have twice the
antioxidant value of green tea extract and 400% more than vitamin C.
†
† Journal of Alternative and Complementary Medicine:
Antioxidant
capacity of 55 [herbs] ...: a comparison using a sequential three-solvent extraction
process. K Wojcikowski, et al.