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The Original Olive Leaf Extract

by Ameriden


The Original Olive Leaf Extract is, as the name implies, derived from the leaves of the olive tree. It is a source of many phytochemicals, primarily oleuropein 20%, which enzymes break down into elenolic acid. Note: Despite some manufacturers claims, there is no Calcium Elenoate in pure Olive Leaf Extract. That is a synthetic invention.

The Original Olive Leaf Extract contains 525 mg per capsule standardized to 20% Oleuropein. Naringen is added to aid absorption. The inert ingredient is vegetable glycerin.


Olive Leaf Extract is an antibacterial, antiviral and antiparasitic substance.


Olive Leaf Extract is non-toxic. However, a "die off" or Herxheimer's reaction may occur from killing too many pathogens too quickly. This is experienced as "flu-like" symptoms or allergic attacks which pass quickly leaving the patient feeling much better than before taking the extract.

Someone at risk for Herxheimer's should try a reduced dose at first, then work up.

Olive Leaf Extract may inactivate antibiotics and should not be taken with them.

The amino acids glycine, lysine, histadine, and cysteine (including n-acetyl-l-cysteine) may interfere with the action of one of the components of Olive Leaf Extract. However, there are at least six active substances in the extract and it may not have a significant clinical effect. These six substances work together to prevent resistance by pathogenic organisms.

Although Olive Leaf Extract will not harm normal gastrointestinal flora, it will attack certain soil based organisms as found in Nature's Biotic or Primal Defense, especially Bacillus subtilis.

People taking warfarin (Coumadin™) should exercise caution. Olive Leaf Extract has a relaxing effect on blood vessels and capillaries and may increase bleeding tendency.

Cheaper brands of the extract are now hitting the market. Not all are of equal quality. Extraction methods and stabilization are important in preserving the Oleuropein concentration as the following chart (data from 7/28/98 to 6/99) shows:
CompanyQuantityMgLot Number%
True %PriceMatch
THE ORIGINAL60 Caps5002201992022.1$25.50$25.50
East Park Research60 Caps500499183911.4$29.95$57.80
Enzymatic Therapy90 Caps250117y35QH1A17 - 2315.2*$29.95$29.95
Natures Herbs30 Caps500803171A65.9$8.95$30.34
Natures Plus30 Caps250C33198FE66.5$10.95$67.38
Olivex60 Caps50001014254$19.95$49.88
Oliver45 Caps5000101743811.3*$33.20$39.18
Prolive60 Caps500806135-08$25.45$31.81
Solaray30 Caps2500208051715.1*$10.79$28.58
Solgar60 Caps225+N/A33$8.95$66.23
Natural Factors90 Caps50014060101.64$16.99$69.15
Natural Life60 Caps500S-0804121.91$8.99$103.55
Natures Way60 Caps225+904293129.4$8.99$46.76

The above information is Intellectual Property of AMERIDEN International, Inc. and all rights are reserved. No part of this information may be reproduced in any form or by any means without the prior written consent of AMERIDEN International, Inc.

** This study was submitted to an independent laboratory by Ameriden. The laboratory tests were ran by lot number and the results were posted. Ameriden did not give the laboratory the company names of those lot numbers so that an unbiased test could be performed.

While Oleuropein is the ingredient most studied, there are in fact 95 different chemicals in the leaf and a balance of ingredients seems to work the best. This product contains no fillers nor simple olive leaf powder which is quite inexpensive.

Finally, remember that certain infections can be dangerous or even life threatening. Always see your doctor first. There are effective, powerful antibiotics and antivirals which should be used if possible in these cases. However, when resistance becomes a problem, when there is no accepted treatment, or when an antibiotic is poorly tolerated, Olive Leaf Extract may be tried.

See Disclaimer.


The usual dose is one capsule 4 times daily. The dose may be increased if needed to as much as 4 capsules 4 times daily in the case of severe infections. For colds and flu take 4 capsules initially then 2 capsules every 4-5 hours for 2-3 days. Get Well which contains Olive Leaf Extract, may be more effective.

Olive Leaf comes in 90 Capsule bottles. Olive Leaf also now has FREE SHIPPING for all quantities. NHC Sells Olive leaf for $24.71. This is a special price and no further discounts apply. (The suggested retail price is $32.95).


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Created March 1, 1998. Redesigned April, 2011. Natural Health Consultants is a division of Netriceuticals, Inc. Content 2011 Copyright Netriceuticals.
Statements on this website have not been evaluated by the U.S. Food & Drug Administration (FDA).
The products discussed are not intended to diagnose, treat, cure, or prevent any disease.