✅ Olive Leaf Extract WITH all polyphenols intact:























⭕️ Dose and quality of olive leaf extract is important ⭕️

How Pathogens Weaken the Immune System.

Our immune systems act like an armoured police force assigned to protect us from the billions of pathogenic (disease causing) organisms in our environment. These opportunistic bugs enter the body through breathing, eating, drinking and cuts in the skin.

Tested to have the highest strength antioxidants (polyphenols) of many available brands

Tested to have the highest strength antioxidants (polyphenols) of many available brands

When the immune system is functioning at the peak of efficiency, these microorganisms can be present in the body but they have little effect. When an injury or an over abundance of physical or mental stress weakens the immune system, these unwelcome organisms are able to get a stronghold. As these pathogens overtake various glands, organs, and tissues in the body they cause dysfunction. Doctors call the resulting dysfunction ''disease''. At some point, the diseased glands, organs, or tissues produce symptoms that are characteristic of the particular pathogen. For example, cold viruses normally attack the respiratory system that then reacts by producing more phlegm. Tissues swell, then sneezing, coughing, runny nose, and other discomforts appear as symptoms.

Many times it takes months, and even years for symptoms to appear. Even prior to the appearance of symptoms, the pathogens are in the body draining strength from the infected tissues and the immune system.

A partial list of Pathogens affected by East Park Olive Leaf Extract:

Highest strength olive leaf extract for prevention of flu & candida

Highest strength olive leaf extract for prevention of flu & candida

Amoeba - Ebola Virus = Influenza - P. Solanacearum - Rabies 
Botulism - Giardia - Lactobacillus - P. Lachrymans - Roundworm 
Chancroid - Hepatitis - Leptospirosis - Parainfluenza - Rubella 
Chlamydia - Herpes - Listeria - Pneumonia - Vaccinia 
E. Coli - HIV/AIDS - Norwalk Agent - Pseudorabies - Virax

The preceding list is taken from Dr. Morton Walker's book, Olive Leaf Extract, published by Kensington Publishing Company.


Olive leaf extract produces substantial energy increases in most people that use it. It is not at all uncommon to hear people state they they have more energy than they have had for years.

During clinical use by a doctor in Southern California, patients stated that Olive Leaf Extract solved their tiredness and fatigue problems. Many choose to continue with Olive leaf extract even after their conditions of ill health are gone. Healthy people without any noticeable health problems who take it say they also feel this infusion of energy.

Olive Leaf Extract versus
Pathogens: In vitro

In 1993, Tranter and Tassou of the PHLS Centre for Applied Microbiology and Research in England found that elenolic acid inhibited the growth of Staphylococcus aureus when tested in vitro. A concentration of only 0.6% was sufficient for this antibacterial effect. They also noted that oleuropein was effective in the destruction of enterotoxin B.

Olive leaf extract has also been tested and found to be safe in amounts far higher than the normal daily amount. Laboratory testing indicates that amounts many times larger than the daily recommended usage are not toxic and do not cause adverse effects.

The 'Die-Off' Effect: 
A Good Sign

In cases where people are suffering with a chronic problem, there may be a quick and somewhat adverse reaction. The 'die-off' effect, or Herxheimer Response, refers to problems generated by a detoxification process.

'Die-off' occurs as large quantities of invading organisms die. When that happens, the dead microbes release toxins and other substances. When large quanties of this foreign material are present, the body begins a process to get rid of it.

Sometimes there are more dead cells and toxins that the eliminative organs can handle. Thus, once could feel ill or develop a skin reaction. All of these conditions are good signs - they indicate that the Olive leaf extract is working.

Common reactions include fatigue, diarrhea, headaches, muscle or joint achiness or flu-like symptoms. Some people may develop a rash, pimples or other skin condition. Severity differs from person to person, depending on the extent of the problem.

How to Handle 'Die-Off' Effect

The best way to limit any adverse reaction is to drink as much water as possible. Water helps to strengthen the lymphatic system and flush the kidneys. We recommend reverse-osmosis or distilled water.

For minimal discomfort, such as a headache or muscle/joint pain, a simple over-the-counter analgesic such as aspirin or ibuprofen usually suffices.

For more than minimal discomfort, one might consider reducing the daily intake of Olive leaf extract or discontinuing use for a few days. It may take a day or two, or even a week, for the body to process and eliminate the toxins produced by the dead microbes.

After these few days, one should resume taking Olive leaf extract at a slightly lower amount and increase slowly.

'Die-off' effect is only temporary, and usually ends with a grealy enhanced feeling of well being. Olive leaf extract is very safe, in spite of the 'die-off' effect.

Health for the Heart and Cardiovascular System

F. Visioli and C. Galli at the Institute of Pharmacological Studies, University of Milan, pave the way in their 1994 study which showed that olive leaf derivatives are good antioxidants. Thus, they proposed that this is a new link between the Mediterranean diet and the prevention of serious heart problems.

V. Petkov, working on his research in Europe and writing for peer-review journals in the United States, also found uses for olive leaf in nutritionally maintaining healthy cardiovascular systems and helping other heart problems.

A 1994 experiment at the University of Milan's Institute of Pharmacological Studies found that olive leaf inhibited oxidation for low-density lipoproteins.

A subsequent study in 1995 at the same institution linked olive leaf to the reduction or delaying of problems in the heart.

Olive Leaf Maintains 
Proper Blood Pressure

Olive leaf extract has also been studied for its ability to normalise blood pressure. Ribeiro and Fiuza reported the findings of their study in the Journal of Ethnopharmacology. They studied thirty-two medicinal plants, and verified that olea europaea, olive leaf, produced a beneficial effect.

These findings were confirmed by A. Zarzuelo and J. Duarte, researchers in the Pharmacology Department at the University of Granada, Spain, who studied extract made from olive leaves.

A recent study of olive leaf to determine its blood pressure normalising capabilities was undertaken in 1996 by a large team of researchers in Belgium. They tested thirty patients who were suffering from high blood pressure. After three months on specially prepared olive leaf extract, quoting the researchers, "We note for all patients a statistically significant decrease of blood pressure." Additionally, they noted that they did not find any side effects from the extract occurring in the patients in this study.

As demonstrated here, Olive Leaf Extract can be a powerful antioxidant much like flavonoids and proanthocyanadins. These very compounds protect the heart and cardiovascular system from free radical-induced damage, and promote powerful good health in the user.

Antimicrobial and Antiviral Activity  

Olive leaf extract has been researched for its antimicrobial and antiviral activity. The majority of this research is in-vitro, and there is a need for ongoing human clinical research in this area. 

To date, the following has been demonstrated in published research: 

  • Olive leaf extract has some potential activity against the influenza virus (in-vitro and animal studies).4 

  • Olive leaf extract may enhance the body’s response to viral infection through the stimulation of phagocytosis.4 

  • Gargling olive leaf tea has been shown to improve symptoms of a sore throat. This is thought to be related to a reduction of inflammation and viral infectivity.4 

  • Oleuropein has been shown to have in–vitro antibacterial activity against some gram-positive and gram-negative human pathogenic bacteria.5  

Insulin Sensitivity  

A 2013 randomised, double-blinded, placebo-controlled, crossover trial assessed the effects of supplementation with olive leaf polyphenols (51.1 mg oleuropein and 9.7 mg hydroxytyrosol) on insulin action and cardiovascular risk factors in overweight middle-aged men at risk of metabolic syndrome.6  

Twelve weeks of supplementation with olive leaf polyphenols significantly improved insulin sensitivity and pancreatic ß-cell secretory capacity.6 

Cardiovascular Health 

A 2008 paper in borderline hypertensive monozygotic twins assessed the ability of olive leaf extract to reduce blood pressure. Results showed that olive leaf extract has an anti-hypertensive and lipid-lowering effect.7 

A 2017 randomised controlled trial published demonstrated that phenolic-rich olive leaf extract had hypotensive and lipid-lowering effects.8 

Olive leaf extract has also been shown to improve vascular function in human research.9 

General safety and toxicity information:

In-market use of olive leaf extract, over many years, has demonstrated that the product is well tolerated by most patients.

There is limited toxicology data for olive leaf extract in humans. One study showed that use of an olive leaf extract over a 15 day to 12-week period demonstrated good tolerability. In addition, a study in 188 patients treated with olive leaf extract reported no serious adverse effects. There is also some evidence of the product being well tolerated in animal species.


Possible side effects:

No serious adverse effects have been reported in clinical studies involving olive leaf extract.




  1. Vogel P, Machado I, Garavaglia J, et al. Polyphenol benefits of olive leaf (Olea europaea L.) to human health. Nutr Hosp. 2015;31(3):1427–33. 

  2. Ali Hashmi M, Hanif M, Farooq U, et al. Traditional uses, phytochemistry and pharmacology of Olea europaea (Olive). Ev Based Complement Alternat Med. 2015; doi:10.1155/2015/541591. 

  3. Wojcikowski K, Stevenson L, Leach D, et al. Antioxidant capacity of 55 medicinal herbs traditionally used to treat the urinary system: a comparison using a sequential three-solvent extraction process. J Altern Complement Med 2007;13:103-109. 

  4. Roxas M. Jurenka J. Colds and Influenza: A review of diagnosis and conventional, botanical and nutritional considerations. Alt Med Rev. 2007.2(1):25-48. 

  5. Omar S. Oleuropein in olive and its pharmacological effects. Sci Pharm. 2010;78:133–54. 

  6. de Bock M, Daerraik J, Brennan C, et al. Olive ( O l e a e u r o p a e a L.) Leaf Biophenols Improve Insulin Sensitivity in Middle-Aged Overweight Men: A Randomized, Placebo-Controlled, Crossover Trial. 2013; 8(3):1-8. 

  7. Perrinjaquet-Moccetti T, Schmidlin C, et al. Food supplementation with an olive (Olea europaea L.) leaf extract reduces blood pressure in borderline hypertensive monozygotic twins. Phytother Res. 2008 Sep;22(9):1239-42 

  8. Lockyer S, Rowland I, Spencer J, et al. Impact of phenolicrich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomised controlled trial. Eur J Nutr. 2017; 56(4):142114 

  9. Lockyer S, Corona G, Yaqoob P, et al. Secoiridoids delivered as olive leaf extract induce acute improvements in human vascular function and reduction of an inflammatory cytokine: a randomised, doubleblind, placebo-controlled, cross-over trial. Br J Nutr. 2015 Jul 14;114(1):75-83. 

  10. Barbara B, Toietta G, Maggio R, et al. Effects of olive-derived oleuropein on human health. Int J Mol Sci. 2014;15(10):18508–24.

  11. Vogel P, Machado I, Garavaglia J, et al. Polyphenol benefits of olive leaf (Olea europaea L.) to human health. Nutr Hosp. 2015;31(3):1427–33.

  12. Ali Hashmi M, Hanif M, Farooq U, et al. Traditional uses, phytochemistry and pharmacology of Olea europaea (Olive). Ev Based Complement Alternat Med. 2015; doi:10.1155/2015/541591.

  13. Lee O, Lee B. Antioxidant and antimicrobial activities of individual and combined phenolics in Olea europaea leaf extract. Bioresor Technol. 2010; 101:3751-4.

  14. Umeno A, Takashima M, Murotomi K, et al. Radical-scavenging Activity and Antioxidative Effects of Olive Leaf Components Oleuropein and Hydroxytyrosol in Comparison with Homovanillic Alcohol. J Ole Sci. 2015; 64:7;793-800

  15. Roxas M. Jurenka J. Colds and Influenza: A review of diagnosis and conventional, botanical and nutritional considerations. Alt Med Rev. 2007.2(1):25-48.

  16. de Bock M, Daerraik J, Brennan C, et al. Olive ( O l e a e u r o p a e a L.) Leaf Biophenols Improve Insulin Sensitivity in Middle-Aged Overweight Men: A Randomized, Placebo-Controlled, Crossover Trial. 2013; 8(3):1-8.

  17. Boss A, Bishop S, Marlow G, et al. Evidence to Support the Anti-Cancer Effect of Olive Leaf Extract and Future Directions. Nutrients. 2016;8:513.

  18. Milanese S, Bigdeli M, Rasoulian B, et al. The effect of olive leaf extract on antioxidant enzymes activity and tumor growth in breast cancer. Thrita. 2014;3(1): doi: 10.5812/thrita.12914

  19. Cardeno A, Sanchez-Hidalgo M, Rossillo M, et al. Oleuropein, a Secoiridoid Derived from Olive Tree, Inhibits the Proliferation of Human Colorectal Cancer Cell Through Downregulation of HIF-1α. Nutr Cancer. 2013;65(1):147–56.

  20. Samet I, Han J, Jlaiel L, et al. Olive (Olea europaea) Leaf Extract Induces Apoptosis and Monocyte/Macrophage Differentiation in Human Chronic Myelogenous Leukemia K562 Cells: Insight into the Underlying Mechanism. Oxid Med Cell Longev. 2014; :927619. doi: 10.1155/2014/927619.

  21. Goulas V, Exarchou V, Troganis A, et al. Phytochemicals in olive-leaf extracts and their antiproliferative activity against cancer and endothelial cells. Mol Nutr Food Res. 2009;53(5):600–8.

  22. Lockyer S, Rowland I, Spencer J, et al. Impact of phenolic‑rich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomised controlled trial. Eur J Nutr. 2017; 56(4):1421-1432.

  23.  Perrinjaquet-Moccetti T, Schmidlin C, et al. Food supplementation with an olive (Olea europaea L.) leaf extract reduces blood pressure in borderline hypertensive monozygotic twins. Phytother Res. 2008 Sep;22(9):1239-42.

  24. Susalit E, Agus N, Tjandrawinata R, 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.

  25. Lockyer S, Corona G, Yaqoob P, et al. Secoiridoids delivered as olive leaf extract induce acute improvements in human vascular function and reduction of an inflammatory cytokine: a randomised, doubleblind, placebo-controlled, cross-over trial. Br J Nutr. 2015 Jul 14;114(1):75-83.

  26. Hagiwara K, Goto T, Araki M, et al. Olive polyphenol hydroxytyrosol prevents bone loss. Eur J Pharmacol. 2011;662:78–84.

  27. Sudjana A, D’Orazio C, Ryan V, et al. Antimicrobial activity of commercial Olea europaea (olive) leaf extract. Int J Antimicrob Agents. 2009;33:461–3.

  28. Pereira A, Ferreira I, Marcelino F, et al. Phenolic Compounds and Antimicrobial Activity of Olive (Olea europaea L. Cv. Cobrançosa) Leaves. Molecules. 2007;12:1153–62.

  29. Perugini P, Vettor M, Rona C, et al. Efficacy of oleuropein against UVB irradiation: preliminary evaluation. In J Cosmet Sci. 2008. 30: 113–120. doi:10.1111/j.1468-2494.2008.00424.x

  30. Mijatovic S, Timotijevic G, Miljkovic J. Multiple antimelanoma potential of dry olive leaf extract. Int J Cancer. 2011;128(8):1955–65.

  31. Gong D, Geng C, Jiang L, et al. Mechanisms of olive leaf extract-ameliorated rat arthritis caused by kaolin and carrageenan. Phytother Res. 2012;26(3):397–402.

  32. Omar S, Kerr P, Scott C, et al. Olive (Olea europaea L.) biophenols: a nutraceutical against oxidative stress in SH-SY5Y cells. Molecules. 2017;22:1858–78.

  33. Grieve M. A Modern Herbal. Volume 2. 1971. Harcourt, Bryce and Company: New York.

  34. Hakim G, Chishti N. The traditional healer’s handbook: a classic guide to the medicine of Avicenna. 1998. Healing Arts Press: Vermont.

  35. EMA 2012a. European Medicines Agency. Community herbal monograph on Olea europaea L folium. (EMA/HMPC/43057/2009)

  36. EMA 2012b. European Medicines Agency. Assessment on Olea europaea L folium. (EMA/HMPC/43056/2009)

  37. Health Canada monograph. Olive Leaf – Olea europaea. 8 December 2015.

  38. Ritchason J. Olive Leaf Extract – potent antibacterial, antiviral and antifungal agent. 1999. Woodland Publishing: Utah.