Oliver™ is a botanical extract of olive leaf which supports a healthy immune system. Olive leaves have been used medicinally in the Mediterranean for centuries. The leaves have been found to contain compounds that act as a natural defense to fungi, insects and bacteria. Those same compounds provide natural support for ahealthy immune system in humans.‡
Olive leaf has a wide number of constituents, including oleuropein, a polyphenol, and several types of flavonoids (e.g., rutin, apigenin, luteolin). Oleuropein from olives may also have antibacterial properties. When unheated olives are brined to preserve them, oleuropein is converted into another chemical called elenolic acid. Elenolic acid has shown antibacterial actions against several species of Lactobacilli and Staphylococcus aureus and Bacillus subtilus in a test tube study.‡
Various studies have shown additional potential benefits to oleuropein including supporting a healthy heart and cardiovascular system, healthy immune system, and healthy joints.‡
Warning: If you are pregnant or lactating woman, have any health conditions, or are taking any medication, make sure to consult your healthcare provider prior to use.
‡ These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure or prevent any disease.
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Olmez, E., Vural, K., Gok, S., Ozturk, Z., Kayalar, H., Ayhan, S., and Var, A. (2015) Olive Leaf Extract Improves the Atherogenic Lipid Profile in Rats Fed a High Cholesterol Diet. Phytother. Res., 29: 1652– 1657. doi: 10.1002/ptr.5445.
Lockyer, S., Rowland, I., Spencer, J.P.E. et al. Impact of phenolic-rich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomised controlled trial. Eur J Nutr 56, 1421–1432 (2017). https://doi.org/10.1007/s00394-016-1188-y
Oxidative Medicine and Cellular Longevity: “Plant polyphenols as dietary antioxidants in human health and disease.”
Molecules: “Evaluation of Phytochemical and Antioxidant Properties of 15 Italian Olea europaea L. Cultivar Leaves.”
Iranian Journal of Pharmaceutical Research: “Prolonged Oral Administration of Oleuropein Might Protect Heart against Aconitine-induced Arrhythmia.”
European Journal of Nutrition: “Impact of phenolic-rich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomised controlled trial.”
Susalit E, Agus N, Effendi I, Tjandrawinata RR, Nofiarny D, Perrinjaquet-Moccetti T, Verbruggen M. Olive (Olea europaea) leaf extract effective in patients with stage-1 hypertension: comparison with Captopril. Phytomedicine. 2011 Feb 15;18(4):251-8. doi: 10.1016/j.phymed.2010.08.016. Epub 2010 Oct 30. PMID: 21036583.
Poudyal H, Campbell F, Brown L. Olive leaf extract attenuates cardiac, hepatic, and metabolic changes in high carbohydrate-, high fat-fed rats. J Nutr. 2010 May;140(5):946-53. doi: 10.3945/jn.109.117812. Epub 2010 Mar 24. PMID: 20335636.
Liu Y, McKeever LC, Malik NS. Assessment of the Antimicrobial Activity of Olive Leaf Extract Against Foodborne Bacterial Pathogens. Front Microbiol. 2017 Feb 2;8:113. doi: 10.3389/fmicb.2017.00113. PMID: 28210244; PMCID: PMC5288333.
Somerville V, Moore R, Braakhuis A. The Effect of Olive Leaf Extract on Upper Respiratory Illness in High School Athletes: A Randomised Control Trial. Nutrients. 2019 Feb 9;11(2):358. doi: 10.3390/nu11020358. PMID: 30744092; PMCID: PMC6412187.