Olive leaf extract is commonly used to support the treatment of viral, bacterial, and other infections such as winters ills and chills. There is no current supporting evidence but people have for years used Olive Leaf as an aide against influenza, swine flu, the common cold, meningitis, Epstein-Barr Virus (EBV), encephalitis, herpes, shingles, HIV/ARC/AIDS, and hepatitis B. 

Olive leaf is also used for pneumonia; chronic fatigue: tuberculosis (TB); gonorrhea; fever; malaria; dengue; “blood poisoning” (bacterial infections in the bloodstream); severe diarrhea; and infections in the teeth, ears, and urinary tract, and infections following surgery. 

Finally other uses include helping support the body against high blood pressure, diabetes, hay fever, improving kidney and digestive function, and increasing urine flow.