A natural formula produced from olive leaves, Olive Leaf Extract is designed to control lipidemia. It is supported by three clinical studies which have confirmed its ability to lower LDL-cholesterol and triglyceride levels, increase HDL-cholesterol and fight lipid peroxidation.
Olive Leaf Extract a natural-source dietary supplement produced from olive leaves. It contains a very high level of oleuropein, a bioactive phytonutrient specific to the olive tree, which helps control blood lipids and prevent carbohydrate absorption.
It is aimed at anyone who wants to improve their cardiovascular health and maintain the integrity of their blood vessels. Individuals with the following risk factors are likely to be particularly interested in this product:
The beneficial effects of the olive tree are attributed to its exceptionally high content in phenolic compounds, molecules known for their antioxidant potency. In the olive tree, these compounds play a part in defending the tree from insects, infection, multiple microbial attacks and UV radiation (1-2), but they are also biologically active when ingested by humans. They are known to reduce the risk of a number of diseases by combatting free radicals and improving enzymatic balance.
Oleuropein is the most abundant phenolic compound in the olive tree (3) (accounting for around 25% of the extract). It is oleuropein that gives extra virgin olive oil its characteristic bitterness, but there are many other such compounds found in Olive Leaf Extract: apigenin, caffeic acid, catechins, coumaric acid, diosmetin, ferulic acid, gallic acid, hesperidin, hydroxytyrosol, luteolin, oleoside, quercetin, rutin, tyrosol, vanillin, verbascoside…
As the oleuropein in olive leaves has been scientifically shown to be responsible for the plant’s benefits, Olive Leaf Extract is formulated to contain an optimum amount of this compound.
Olive Leaf Extract’s effects on the cardiovascular system.
Olive leaves have been used in phytotherapy since antiquity apparently for their antilipidemic, antiseptic and antiviral properties.
Scientific research has since confirmed these applications and identified new properties: antimicrobial (4-5), antiviral (6), antifungal (7), gastro-protective (8), blood glucose-lowering (9), blood pressure-lowering (10), antioxidant (11-12), antiatherogenic (13), hypolipidemic (14), anti-inflammatory (15), neuro-protective (16), vasodilatory (17) and anti-ageing (18).
There are three precise mechanisms of action which are responsible for the majority of Olive Leaf Extract’s effects on the cardiovascular system:
1) cholesterol-lowering action
The olive tree’s polyphenols, particularly oleuropein, act on cholesterol excretion (19). They promote the elimination of excess cholesterol via the bile ducts, duodenum and finally faeces.
2) antioxidant action
The antioxidant potential of oleuropein is exceptional. When elderly institutionalised individuals followed a diet enriched with an extract of oleuropein and its derivatives for six weeks, their antioxidant capacity was shown to improve (20). It is a natural solution to combatting oxidative stress and inhibiting LDL oxidation (21).
3) action on sugar absorption
By binding to sucrase and maltase, two digestive enzymes, oleuropein limits sugar absorption and thus reduces spikes in blood glucose. It also does this by slowing down activity of the sugar transporter, GLUT2.
The effect of Olive Leaf Extract has been directly measured in three clinical trials (22).
1) One year’s supplementation with 250mg a day
Following 12 months’ daily supplementation by subjects with elevated cholesterol levels, researchers recorded:
2) Four weeks’ supplementation with 250mg a day
In overweight subjects, there was a significant improvement over four weeks in the expected ratio of coronary risk as compared with placebo. A clear decrease in triglycerides was observed.
3) Eight weeks’ supplementation with 250mg a day
The third study examined the ability of Olive Leaf Extract to reduce oxidative stress. Results showed that daily supplementation with 250mg reduced levels of MDA (malondialdehyde) by almost a third, a urinary marker of oxidative stress.
Studies suggest that the leaves and fruit are equally rich in oleuropein (23), but olive leaf is considered a more renewable natural source for extraction (24). Hence its use in Olive Leaf Extract, and its ingredient Olécol®.
1) The antioxidant content of olives depends to a large extent on variety, maturity and preservation. Therefore, if you live a long way away from the Mediterranean region where they’re grown, you can’t really rely on eating olives all year round to boost your cardiovascular health. With its exceptional and stable content in olive tree polyphenols, Olive Leaf Extract provides a solution to this problem, offering populations the world over the opportunity to fully benefit from the advantages of a Mediterranean diet.
2) Eating a Mediterranean diet is associated with a lower risk of all-cause mortality (25). Scientific studies have in large part attributed these protective effects to the role played by the olive tree (26).
3) The bioavailability of oleuropein in humans is very high – between 55% and 60% (27). Maximal plasma concentration occurs two hours after oral administration. Studies have also shown that oleuropein crosses the blood-brain barrier easily.
4) The Mediterranean diet was recognized by UNESCO in 2010 as an Intangible Cultural Heritage of Humanity.
5) Cardiovascular disease is the leading cause of mortality across the world, claiming more than 17 million lives each year.
To further enhance the efficacy of Olive Leaf Extract, you can adopt these additional measures throughout the supplementation period:
These measures are part of the Mediterranean diet which is based on the long-term food habits of Mediterranean populations. They are a good accompaniment to supplementing with Olive Leaf Extract though not essential for obtaining the benefits of this product.
Note: this product should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. It’s important to follow the guidelines on how to take it and the recommended dose, and to use it by the ‘best before’ date. It is not recommended for women who are pregnant or breastfeeding, or for children under 15. Keep out of children’s reach. Store in a cool, dry place.
|Dose: 2 capsules
Number of doses per pack: 30
|Amount per dose|
|Olecol®, extract of Olea Europaea leaf standardised to 32% oleuropein||250 mg|
|Other ingredients: acacia gum, rice bran.
Olecol®, Bioactor, Netherlands.
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