Olive leaf extract is a botanical extract derived from the leaves of the Olea europaea tree. This extract has been used in traditional medicine for centuries, and modern science is now beginning to confirm the usefulness of olive leaf extract against infectious disease. The primary active compound in olive leaf extract, oleuropein, has been thoroughly investigated for its potential immune-boosting, antioxidant, cardiovascular, and antibacterial properties.
Oleuropein is considered to be highly soluble in water, which means that this substance has high bioavailability and quickly absorbs into your body’s tissues.
The only known natural source of oleuropein is the leaves of olive trees.
While oleuropein appears to be a highly beneficial substance, there is no official nutrient reference value (NRV) for olive leaf extract. In clinical studies, daily doses between 50mg and 500mg have been used and well-tolerated.
While olive leaves are technically edible, they are not commonly consumed in food, and they are by no means integral components of most modern diets. It’s possible to consume oleuropein in tea, but it’s most convenient to ingest this beneficial plant extract in supplement form.
Olive leaf extract appears to exert various benefits associated with its purported antioxidant activity. Most notably, oleuropein seems to directly attack most types of viruses, which could make this substance even more effective than antiviral treatments that bolster your immune system’s innate defences. Furthermore, oleuropein also appears to bolster your cardiovascular system, prevent neurological damage, and improve metabolism in both healthy individuals and people who suffer from diabetes or obesity.
Since oleuropein appears to directly combat viral infections at their source, you may want to take olive leaf extract whenever there’s a potential that you might be infected with a virus. In sharp contrast to mainline antiviral treatments, olive leaf extract does not appear to have any side effects. On the contrary, this potential antiviral agent appears to improve your health in a variety of ways aside from killing viruses, so you might want to take olive leaf extract even when protecting yourself from viral infections isn’t your top priority.
Since olive leaf extract is considered to be highly bioavailable, your body should be able to deploy the beneficial components of this natural plant extract within 24 hours or less.
The water-soluble components in olive leaf extract, such as oleuropein, should fully absorb into your body’s tissues within 1-2 days.
The beneficial compounds in olive leaf extract generally only stay in your body for around 2-3 days after ingestion.
Both clinical and lab studies indicate that oleuropein may exert direct, potent antioxidant properties in the body.
There are no reported cases of olive leaf extract overdose. When taken in unreasonably large quantities, oleuropein may increase oxidative stress throughout the body.
The beneficial substances in olive leaf extract usually fully flush out of the body within 2-3 days.
Research indicates that olive leaf extract may be useful for weight loss, and this gluten-free, vegan, and cruelty-free substance does not interfere with any dietary restrictions.
Both oleuropein and the other beneficial substances in olive leaf extract have been synthesised in small scales in laboratory conditions.
No data are available on the potential absorption rates of synthetic olive leaf extract components.
At present, only natural forms of olive leaf extract are available to consumers.
Olive leaf extract can be chewed or brewed into tea, but this substance is usually taken as an oral supplement.
In 2020, multiple studies were published relating to the potential benefits of olive leaf extract for liver injury and common liver diseases. In one study, researchers demonstrated that olive leaf extract may prevent liver damage caused by heavy metal accumulation, and in another 2020 study, scientists showed that olive leaf extract may help with both the unhealthy metabolism fluctuations and liver damage that can be caused by unreasonably fatty diets.