The famous ancient Greek health enthusiast Hippocrates, was had been promoting the health benefits of olive leaves, which are native to the Mediterranean region, where he lived. But archaeologists have discovered that long before Hippocrates in ancient Egypt, olive leaves were already in use for their health benefits. Since late last century, Olive Leaf Extract (OLE) capsules have been sold to consumers, after olive leaves made a modern medical comeback.
They are now well known for various health benefits, especially cardiovascular and immune related. It is known as one of the few natural sources forms of antivirus and likewise with regard to natural antibiotics. The most boasted of the cardiovascular benefits are lowered blood pressure and lowering of cholesterol buildups. There are many other benefits including antibacterial, anti-fungal and anti-inflammatory uses. Olive leaves are so beneficial thanks to antioxidants like hydroxytyrosol and especially oleuropein.
Most olive leaf extracts, like many herbal supplements, are in ground powdered leaf form, packed into capsules made of either plant extracts or animal sources. Only one supplement in this review, was confirmed to be made with animal extracts. Some OLEs can be taken in liquid form such as oils or tea. Only one liquid OLE was amongst the top five reviewed here, and that was an organic oil OLE from a family farm in Australia. The powder and oil options from OLEs can be likened to the availability of moringa supplements in ground leaf and oil forms.
Healths Harmony Olive Leaf
These bottles contain 60 capsules of 750 mg of olive leaf, with 150 mg or 20% oleuropein.
The OLE on top of this review list, was the only supplement reviewed, which was confirmed to have no genetically modified organisms (GMOs). The manufacturer claimed that there are no pesticides in this product, but also added that they are not organic certified because of the way they extract the oleuropein from the leaves. But they said it’s suitable for vegetarians. There’s no alcohol used in the production of the supplements. This product is made in the USA, and deliveries are reportedly fast and well packaged.
A lot of people have been taking this to lower blood pressure and cholesterol with significant, measurable results within weeks. Others have been surprised with the immune system boost against viruses and allergies. Many reported results like treating shingles, sore throats, rapid recoveries and even complete prevention of colds and flu, improving memory and mental attentiveness, yeast overgrowth etc. One buyer said that they had itchy skin before taking these supplements. Another remarked that they had taken this for over a year and didn’t catch a cold or flu, even though they didn’t take a flu shot.
Swanson Superior Herbs Olive Leaf Extract
These bottles contain 60 capsules of 750 mg of olive lead, with 150 mg or 20% oleuropein.
This non-organic product is made in the USA, but was the only product reviewed that is unsuitable for vegetarians. It has been reported that the manufacturer’s customer service personnel, have said on one occasion that the capsules are made from pigs and on another occasion that they are “likely” made from cattle and pigs. So people from certain religious backgrounds like Hinduism, Judaism, Islam and some forms of Christianity, might need to consider that in addition to these reports, the manufacturer has confirmed: these capsules are not vegan.
Some buyers reported that this supplement has been helping them to never experience anymore colds. One customer said it caused them indigestion, and said they had no mental improvements. A different person said it helped with eczema. Some said they were experiencing noticeably measurable improvements with blood pressure and cholesterol. There are others that used it for herpes, to prevent outbreaks and symptoms. Another had success against shingles, and someone else with yeast overgrowth. As with the number one rank in this article, someone also experienced overnight recovery against an oncoming flu.
Nature’s Way Olive Leaf
These bottles contain 60 capsules of 250 mg of olive leaf, with 30 mg or 12% oleuropein.
The manufacturer confirmed that this product isn’t organic. But these vegetarians capsules have no soy, no wheat, no artificial coloring, no preservatives, and no salt, sugar or yeast. The manufacturer has revealed that their olive leaves are sourced from trees in Spain, Albania and Morocco. They also disclosed that the raw leaves are tested for residue, microbial contaminants and heavy metals.
A few customers claimed that this product resolved problems with sinus problems or allergies. Someone said two years of fevers from treatment with a foreign body, ended with this OLE. A number of people also blamed it for curing nail fungi. There were individual claims of curing a bacterial staph infection, an ear infection that had failed to be cured by chemical antibiotics, prevention of cold sore breakouts, lowering of blood pressure, Candida, bacterial overgrowth of the small intestine. Many people said it prevented them from getting colds and flu.
Barlean’s Olive Leaf
These bottles contain 16 ounces of OLE oil and palm glycerin.
This supplement is uniquely different from the other OLEs reviewed here, because it is olive leaf extracted as an oil, rather than ground leaf extracts. It is also the only product on the list, which is organic. There’s several advantages to liquid OLE. It is more concentrated than the powdered capsule form. This brand has peppermint flavor, but some people like to mix it with drinks like juice or even just water. Issues over animal parts in the ingredients of capsule shells, obviously don’t exist with liquid OLE. Capsules take longer to digest, compared with liquid OLE in oil form.
This Australian OLE supplement is family owned and made from Australian grown olive leaves, from the Barlean family farm. Due to space limitations, and because much was said about the uniqueness of this product, details of health results won’t be mentioned in this review. But one unique result should be mentioned: that person said it helped them with an upper respiratory infection. It appears people have been having results comparable to the other OLE supplements, and some have even claimed their results were better than with powdered OLE capsules.
NOW Olive Leaf Extract
These bottles contain 120 capsules of 500 mg of olive leaf, with 6% oleuropein.
As with all the OLE products reviewed here, this one was also very effective for preventing colds and flu. Someone said it was very effective for killing bacteria. Others have been pleased with its’ yeast fighting abilities. An arthritis sufferer, said they sometimes have trouble with the bottle. This product is also made of ingredients suitable for vegetarians. Several people were pleased with how affordable this brand is. But one person said after taking this supplement for over two years, it had only reduced their occurrence of flu, but did not completely prevent flu.
It is good for preventing or reducing symptoms for various ailments. Someone was impressed with the results it had on lowering their blood pressure. There were instances of effective preventions for breakouts of cold sores and shingles respectively. Another person said they had a problem with stomach aches, which was solved by this supplement, until they stopped taking it. One buyer said it was good for reducing the symptoms of their chronic sinus issues. Another with psoriasis, which makes them more prone to skin infections, found prevention in this OLE.
What to Look For
One of the supplements reviewed was confirmed by the manufacturer to have capsules made of cattle or pig materials. All the others were confirmed to be vegetarian. This could be a health issue for some people, or it might be offensive to others with certain personal or religious convictions. So this should be considered because a lot of people, with such sensitivities, are simply unaware that the capsules could be made from cows or pigs.
The most commonly acclaimed benefit of these OLEs in general, has been the lowering of blood pressure and cholesterol, and generally their ability to treat and prevent colds and flu. There’s been many other cases of ailments that multiple people have claimed relief and even cures from. But results can vary between individuals.
A lot of people were impressed with the slow acting treatment of fungi, even over periods of months, especially with nails. Though OLEs can do the job, soaking a digit in vinegar for a few minutes, over a few days, has produced more impressive results. If OLEs cause you side effects, it might be the body’s natural and initial response to the deaths of bodily pathogens, which give off toxic chemicals when they die, else you should call a doctor to be safe.