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Olive Leaf (Check Supplement Facts Box for a List of Organic Ingredients) Supplement Remedy's Nutrition
Olive Leaf (Check Supplement Facts Box for a List of Organic Ingredients) Supplement Remedy's Nutrition
  • Load image into Gallery viewer, Olive Leaf (Check Supplement Facts Box for a List of Organic Ingredients) Supplement Remedy's Nutrition
  • Load image into Gallery viewer, Olive Leaf (Check Supplement Facts Box for a List of Organic Ingredients) Supplement Remedy's Nutrition

Olive Leaf

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Scientific Name
Olea europaea
Clinical Summary

Drevied from fresh or dried leaves of olive plant. Both the leaves and the extract have been used to treat infections, inflammation, diabetes, and hypertension. A major component of olive leaf, oleuropein, has antioxidant properties.. Because of its hypoglycemic effects, the leaf extract can induce insulin release and improve peripheral uptake of glucose.  Further, the leaf extracts demonstrated antimicrobial properties,anti-HIV , and anticancer  properties. Animal studies showed antiarrhythmic, spasmolytic, diuretic ,antihypertensive ,analgesic ,, and cholesterol lowering (effects.

Small studies have shown effectiveness of olive leaf extract in reducing blood pressure in patients with hypertension (.
The anticancer effects of olive leaf extract in humans are not known.

Purported Uses
  • High cholesterol
  • HIV and AIDS
  • Hypertension
  • Infections
  • Promote urination
  • Viral infections
  • Iridoide monoterpenes: oleuropein ligstroside.
  • Triterpenes: oleanolic acid, maslinic acid
  • Flavonoids: luteolin-7-O-glucoside, apigenine-7-O-glucoside.
Mechanism of Action

The cholesterol lowering effects of olive leaf extracts are thought to be due to oleuropein, a compound present in the leaves. Studies on hypercholesterolemic rats have shown that olive leaf extracts are more effective at lowering cholesterol than pure oleuropein. This implies that a synergistic effect occurs between oleuropein and another substance within the leaf . Oleuropein is converted into elenoic acid in the body which may prevent viruses and bacteria from replicating . The antihypertensive and vasodilating effects of olive leaf occurred independently of the integrity of the vascular endothelium . Constituents of olive leaf have been shown to strongly inhibit the complement system, although it is unknown what effect this has on the body . Hypoglycemic activities of olive leaf are attributed to two mechanisms: potentiation of glucose-induced insulin release and increased peripheral uptake of glucose. Hypoglycemic activity is greater in samples collected in the winter months . Olive leaf extract may prevent diabetic neuropathy by reducing glucose-induced apoptosis through the inhibition of neural caspase 3 activation(. Olive leaf extract has been shown to be effective against the following microorganisms: E. coli, Pseudomonas aeruginosa, S. aureus, K. pneumoniae, Trichophyton mentagrophytes, Microsporum canis, T. rubrum and Candida albicans .Anti-HIV properties of Olive leaf extract include up-regulation of the expression of apoptosis inhibitor proteins as well as protein kinase signaling molecules .Olive leaf extract promotes cell differentiation )and induces DNA fragmentation leading to apoptosis in leukemia cell line(.

Adverse Reactions
  • The pollen from olive tree can cause severe respiratory allergy.
Herb-Drug Interactions

Antihypertensive drugs: May increase the blood pressure lowering effect .
Insulin and Antidiabetic drugs: May increase the hypoglycemic effect.
Chemotherapy drugs: May interfere with the actions of certain chemotherapy drugs due to its antioxidant effects.

    1. Montilla MP, Agil A, Navarro MC, Jimenez MI, Garcia-Granados A, Parra A et al. Antioxidant activity of maslinic acid, a triterpene derivative obtained from Olea europaea. Planta Med 2003;69:472-4.
    1. Gonzalez M, Zarzuelo A, Gamez MJ, Utrilla MP, Jimenez J, Osuna I. Hypoglycemic activity of olive leaf. Planta Med 1992;58:513-5.
    1. Markin D, Duek L, Berdicevsky I. In vitro antimicrobial activity of olive leaves. Mycoses 2003;46:132-6.
    1. Lee-Huang S, Zhang L, Huang PL, Chang YT, Huang PL. Anti-HIV activity of olive leaf extract (OLE) and modulation of host cell gene expression by HIV-1 infection and OLE treatment. Biochem.Biophys.Res Commun. 2003;307:1029-37.
    1. PDR for Herbal Medicines. Montvale, NJ: Medical Economics, 1998.
    1. Somova LI, Shode FO, Ramnanan P, Nadar A. Antihypertensive, antiatherosclerotic and antioxidant activity of triterpenoids isolated from Olea europaea, subspecies africana leaves. Journal of Ethnopharmacology.Vol.84(2-3)()(pp 299-305), 2003. 2003;299-305.
    1. Pasquale RD, Monforte A, Trozzi A, Raccuia S, Tommasini S, Ragusa S. Effects of leaves and shoot of Olea europaea L. and oleuropien on experimental hypercholesterolemia in rat. Plantes Med Phytother 1991;25:134-40.
    1. Horn C. Olive leaf to fight infection. Natural Health 2000;30:40.
    1. Zarzuelo A, Duarte J, Jimenez J, Gonzalez M, Utrilla MP. Vasodilator effect of olive leaf. Planta Med 1991;57:417-9.
    1. Pieroni A, Heimler D, Pieters L, van Poel B, Vlietinck AJ. In vitro anti-complementary activity of flavonoids from olive (Olea europaea L.) leaves. Pharmazie 1996;51:765-8.
    1. Brinker F. Herb Contraindications And Drug Interactions. Sandy, OR: Eclectic Medical Publications, 2001.
    1. Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch.Allergy Immunol. 1996;111:210-7.
    1. Kimura Y, Sumiyoshi M. Olive leaf extract and its main component oleuropein prevent chronic ultraviolet B radiation-induced skin damage and carcinogenesis in hairless mice. J Nutr. 2009 Nov;139(11):2079-86.
    1. Anter J, Fernández-Bedmar Z, Villatoro-Pulido M, et al. A pilot study on the DNA-protective, cytotoxic, and apoptosis-inducing properties of olive-leaf extracts. Mutat Res. 2011 May 20. [Epub ahead of print].
    1. Mijatovic SA, Timotijevic GS, Miljkovic DM, et al. Multiple antimelanoma potential of dry olive leaf extract.  Int J Cancer. 2011 Apr 15;128(8):1955-65.
    1. Perrinjaquet-Moccetti T, Busjahn A, Schmidlin C, et al. Food supplementation with an olive (Olea europaea L.) leaf extract reduces blood pressure in borderline hypertensive monozygotic twin.  Phytother Res. 2008 Sep;22(9):1239-42.
    1. Susalit E, Agus N, Effendi I, et al. Olive (Olea europaea) leaf extract effective in patients with stage-1 hypertension: comparison with Captopril. Phytomedicine. 2011 Feb 15;18(4):251-8.
    1. Abaza L, Talorete TP, Yamada P, et al. Induction of growth inhibition and differentiation of human leukemia HL-60 cells by a Tunisian gerboui olive leaf extract. Biosci Biotechnol Biochem. 2007 May;71(5):1306-12.
    1. Anter J, Fernández-Bedmar Z, Villatoro-Pulido M, et a. A pilot study on the DNA-protective, cytotoxic, and apoptosis-inducing properties of olive-leaf extracts. Mutat Res. 2011 Aug 16;723(2):165-70.
    1. Kaeidi A, Esmaeili-Mahani S, Sheibani V, et al. Olive (Olea europaea L.) leaf extract attenuates early diabetic neuropathic pain through prevention of high glucose-induced apoptosis: in vitro and in vivo studies. J Ethnopharmacol. 2011 Jun 14;136(1):188-96.
  1. Esmaeili-Mahani S, Rezaeezadeh-Roukerd M, Esmaeilpour K, et al. Olive (Olea europaea L.) leaf extract elicits antinociceptive activity, potentiates morphine analgesia and suppresses morphine hyperalgesia in rats.  J Ethnopharmacol. 2010 Oct 28;132(1):200-5.