
What are the benefits of taking olive leaf extract?
Feb 08, 2022 · Does olive leaf extract have any side effects? Continued. Some studies report side effects — including coughing, vertigo, stomach pains, and headaches. Some people are allergic to the pollen produced by olive trees and may have an allergic reaction when taking olive leaf extract.
What are the most common olive leaf side effects?
Possible Side Effects Due to a lack of research, little is known about the safety of regular use of supplements containing olive leaf extract. However, there's some concern that olive leaf extract may trigger mild side effects like stomach pain and headache. Some people may develop an allergy to olive leaf extract.
What are the health benefits of olive leaf?
Apr 04, 2019 · One study suggests that possible side effects may include muscle discomfort and headache. People who experience severe or concerning side effects should stop taking the extract and speak to their...
Does olive leaf extract kill good bacteria in the gut?
Oct 30, 2018 · According to this supplement company, there are four possible side effects. It’s possible it can produce a rash. This is potentially because of the detoxification process. However, it’s just purely cosmetic; you can’t feel it. Secondly, because it can lower blood pressure, it may result in temporary lightheadedness.

Is it OK to take olive leaf extract every day?
It's claimed to help manage many conditions, but research best supports just a few: diabetes, high blood pressure, and viral illnesses. There are no standard guidelines on dosages. Most supplement labels recommend between 500 mg and 1,000 mg, sometimes divided into up to four doses, per day.Oct 30, 2021
What happens if you take too much olive leaf extract?
One study suggests that possible side effects may include muscle discomfort and headache. People who experience severe or concerning side effects should stop taking the extract and speak to their doctor. It is also not clear whether olive leaf extract can interact with other medications.Apr 4, 2019
Does olive leaf extract affect the kidneys?
Indeed, the olive leaf extract demonstrated beneficial effects on the kidney function parameters (creatinine and urea) in the present study and other works through its powerful antioxidant properties.Jul 29, 2019
Can you take too much olive leaf?
Researchers warned that consuming too much olive leaf extract may cause more harm than good. It is important to note that there have only been a few small studies on olive leaf extracts. They may have a medicinal role when combined with a healthy diet and lifestyle.Nov 12, 2021
How long does it take for olive leaf extract to work?
The water-soluble components in olive leaf extract, such as oleuropein, should fully absorb into your body's tissues within 1-2 days.Jul 21, 2020
Does olive leaf extract fight viruses?
One study found that olive leaf extract's antiviral and antimicrobial factors reduce the ability of the herpes virus to invade surrounding cells.May 27, 2020
Does olive leaf extract cause blood thinning?
Research shows that olive leaf extract helps prevent LDL (bad) cholesterol from building up in your arteries. This effect helps increase blood flow and lower blood pressure, reducing your risk of heart disease.Nov 6, 2020
How does olive leaf extract help the immune system?
By increasing dietary and supplemental antioxidants, such as those found in olive leaf extract, this in turn could increase your body's total antioxidant capacity and furthermore protect your body from harmful compounds that may hinder immune system actions.
Does olive leaf extract affect hormones?
Compared with the OC group, high dose of olive leaf extract administration significantly increased serum estradiol levels, whereas low dose of olive leaf extract administration did not affect significantly (P=. 0084).
Is liquid olive leaf extract better than capsules?
Olive leaf extract is available in both capsule and liquid form. "While some think the liquid formulations are more potent due to better absorption, which can be true, the capsules are more standardized for dosing that is effective," says Ruhoy.Feb 6, 2020
Does olive leaf interact with any medications?
Medications for high blood pressure (Antihypertensive drugs) interacts with OLIVE. Olive might lower blood pressure. Taking olive along with medications that lower blood pressure might cause blood pressure to go too low.
Does olive oil clog your arteries?
Caldwell Esselstyn points out, “Between 14 and 17 percent of olive oil is saturated, artery-clogging fat—every bit as aggressive in promoting heart disease as the saturated fat in roast beef.”Feb 14, 2018
What is the reaction of olive leaf extract?
It is an immune response to the release of toxins from pathogens which have been destroyed, in this case by the olive leaf extract. Simply put, the reaction proceeds as follows: Olive leaf compounds attack and damage the cells of a large number of pathogens. (disease-causing microbes)
How long does olive leaf pain last?
Nausea. Sore throat and nasal passages. Vaginal irritation especially in the case of yeast/fungal infections. These olive leaf side effects, when they do occur, normally last only for a few days and are generally mild. If infections being treated are more severe, ...
What is the Herxheimer reaction?
Jarisch-Herxheimer or Herxheimers reaction. This reaction, not exclusive to olive leaf extract , is named after the men who first described it, Adolf Jarisch and Karl Herxheim er, dermatologists working on the treatment of Syphilis in 1895. It is an immune response to the release of toxins from pathogens which have been destroyed , ...
What is the best tea for yeast overgrowth?
It is best to start off with weaker capsules or a tincture or mild olive leaf tea and progress to the higher doses, especially when dealing with digestive tract problems such as yeast overgrowth or "leaky gut syndrome.".
What happens when candida is in your gut?
When it turns parasitic, candida albicans forms filaments which embed themselves in the gut lining replacing and excluding the beneficial probiotic gut bacteria. When olive leaf extract damages these filaments, a Herxheimer reaction may occur as described above causing a loose stool. Acid reflux/Heartburn.
Is it safe to take olive leaf with a drug?
The main concern is that olive leaf may magnify or counteract the effects of the drug being taken which could have serious implications. Where the drugs taken have no overlap with olive leaf side or therapeutic effects, it may be safe to take them both but this is best discussed with your doctor.
Can you take olive leaf extract for colds?
This also applies if you wish to take olive leaf extract for a cold for example. Olive leaf extract demonstrates hypoglycaemic and antidiabetic properties in animals. If on diabetic medication, start with small olive leaf doses to gauge the effect or check with your physician beforehand.
What is the reaction caused by olive leaf extract?
The reaction which in this case is caused by olive leaf extract follows a fairly structured process and should be easily recognized. The cells of disease causing microbes also known as pathogens are attacked and destroyed by the olive leaf extract.
How long does olive leaf extract help with insulin?
A study conducted at the University of Auckland took 46 overweight men and gave them either an olive leaf extract supplement or placebo for 3 months. Those given the olive leaf extract experienced a 15% improvement in the insulin sensitivity indicative of a more stable blood sugar. (1) (2)
What is the best herb for shingles?
Olive Leaf Extract for Shingles (Herpes Zosta) Otherwise known as Herpes zosta, shingles is a viral disease characterized by painful and blistered skin rashes usually limited to specific areas of the body. Many experts have begun to appreciate the value of olive leaf extract as an effective natural remedy for shingles.
What is the compound in olive oil?
Olive leaf extract and olive oil, contains a powerful compound called Oleuropein. This compound is responsible for many of its substantial health benefits. It is also the compound responsible for inhibiting the growth and replication of a host of viruses.
Is olive leaf good for you?
There is good reason for this as an ever increasing body of research demonstrates that olive leaf extract has numerous therapeutic benefits including the following: It offers immune system support. It is a rich, natural source of antioxidants (over 5x vitamin C and Goji Berry).
Is olive oil a leaf?
Olive leaves and olive oil has been used for thousands of years in the treatment of various complaints. But as is often the case it took modern society a long time to catch up with tradition. These days, olive leaf extract (Olea europea) is becoming more well-known and used its use is becoming widespread.
Does olive leaf extract cause diarrhea?
Olive Leaf Extract Side Effects-Diarrhea. Some people might experience diarrhea as a reaction to taking olive leaf extract. Similarly to Herxheimer’s reaction, diarrhea might occur when the extract destroys certain filaments in the lining of the stomach loosening the stools.
What is olive leaf extract used for?
Historically, olive leaf extract has been used for the prevention or treatment of inflammation, infections (e.g., the common cold, influenza, Candidiasis, urinary tract infections, shingles ), diarrhea, allergies, and diseases such as Alzheimer's, chronic fatigue syndrome, osteoarthritis, and osteoporosis .
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Does olive leaf extract help with diabetes?
Diabetes. Olive leaf extract may aid in diabetes control , according to a small study published in the Journal of Medicinal Food. For the study, 79 adults with type 2 diabetes took either a supplement containing olive leaf extract or a placebo every day for 14 weeks. By the study's end, participants given olive leaf extract showed ...
Can olive leaf extract cause stomach pain?
However, there's some concern that olive leaf extract may trigger mild side effects like stomach pain and headache. Some people may develop an allergy to olive leaf extract. The pollen from the olive leaf can trigger severe respiratory allergic reactions in people who are allergic to plants in the Oleaceae family, 5 which includes ash trees, ...
Is it safe to use olive leaf extract?
Due to the limited research, it's too soon to recommend olive leaf extract as a treatment for any condition. It's also important to note that self-treating a condition and avoiding or delaying standard care may have serious consequences. If you're considering using olive leaf extract for any health purpose, make sure to consult your physician first.
Is olive leaf good for viruses?
Viruses. Olive leaf extract has antiviral properties and is used in holistic medicine to treat certain viruses. In laboratory testing, olive leaf extract was shown to effectively fight herpes, mononucleosis, and rotavirus, and it may also be useful against influenza and HIV. 4 .
Can you take olive leaf extract with blood pressure medicine?
Olive leaf extract may interact with certain medicines. Do not take olive leaf if you are taking blood pressure medications, as it can cause your pressure to get too low. People who are taking insulin or other blood sugar medicine also should not take olive leaf because it may cause hypoglycemia. 6 .
What is olive leaf extract good for?
This helps to boost the immunity system, works as a natural pathogen killer, fight against strains of bacteria, viruses and fungi. It also works well in the treatment of the common cold and flu, ear infections , yeast infections, viral infections, fibromyalgia and chronic fatigue syndrome. It is available in most health food stores. The ability of the extract as an antioxidant and antiviral medication is not clinically proven. Of late various side effects of the olive leaf extract have been discovered by scientists, which we will talk about here.
Why does olive leaf cause diarrhea?
Diarrhea: It can be a result of stomach irritation and also from overgrowth of candida in the gut. When it turns parasitic it forms filaments that embed in the gut lining. When the olive leaf extract damages the filament formed, a herxheimer reaction is caused which leads to loose stool. 6.
What is the reaction of the immune system when the toxins or endotoxins are being released?
1. Herxheimer Reaction: The herxheimer reaction is a reaction of the immune system when the toxins or the endotoxins are being released. It happens as large amounts of pathogens that are harmful for the body are being killed off. The body is unable to remove all the dead pathogens at once.
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Does olive leaf extract help with low blood pressure?
It is a very common side effect among those suffering from low blood pressure. Olive leaf extracts reduces the blood pressure furtherthus causing dizziness. One must consult the doctor before consuming olive leaf extract if they are suffering from low blood pressure. Those without low blood pressure, experiencing the same symptom must reduce the dosage of the extract and gradually allow the body to adjust to it.
Can olive leaf extract cause stomach ache?
Some people do complain about stomach ache though it is not very common. If the olive leaf extract is taken in high doses one is susceptible to getting stomach ache. In such cases one can reduce the dosage of olive leaf extract and see how that works for you.
Is olive leaf extract an antiviral?
The ability of the extract as an antioxidant and antiviral medication is not clinically proven. Of late various side effects of the olive leaf extract have been discovered by scientists, which we will talk about here. 1.
How much olive leaf extract should I take?
In the human studies discussed above, participants usually took 500–1,000 mg per day of a standard olive leaf extract. Some of these were in divided doses. Olive leaf extract is available in the form of capsules, tablets, and a tea.
How much Oleuropein is in olive leaf extract?
In another study from 2017, researchers randomized people with stage 1 hypertension to take either an olive leaf extract containing 136 mg of oleuropein or a placebo each day. After 6 weeks, the people who took the olive leaf extract had much lower blood pressure than those who took the placebo.
How long does it take for cholesterol to go down in rats?
After 8 weeks , the cholesterol-fed rats had higher levels of total cholesterol and low-density lipoprotein (LDL), or “bad,” cholesterol. In the rats that also consumed the olive leaf extract, these cholesterol levels were significantly lower. These findings may also apply to humans.
What are the polyphenols in olive leaves?
Olive leaves contain several key polyphenols, such as oleacein and oleuropein.
Does Oleuropein help with weight gain?
found that oleuropein supplementation reduced body weight and weight gain in mice that were consuming a high-fat diet. These findings suggest that olive leaf extract containing oleuropein may have the potential to reduce weight gain and lower the risk of obesity.
Does olive leaf extract help with weight gain?
Olive leaf extract is available as a supplement. Olive tree leaves contain oleuropein, which is a polyphenol that may help prevent weight gain. In a 2016 study, researchers orally administered oleuropein to rats with obesity that were. consuming a high-cholesterol diet.
Is olive leaf extract good for you?
Olive leaf extract may have several potential health benefits, such as helping lower cholesterol and blood pressure. Although scientists have conducted much of the research in animals, the extract is also beginning to show promise in some human trials. People in the Mediterranean region have long used olive tree leaves as part ...
Is Mediterranean diet good for you?
If fact, as part of a traditional Mediterranean diet it can lengthen your lifespan. It can also lower your risk of heart disease and certain cancers. As long as you’re eating lots of low-sugar fruits and veggies, and fish, and not too much meat, and EVOO, you’ll likely be healthy.
Can you take olive oil if you are allergic to olives?
If you’re allergic to olives, don’t take this supplement. But olive allergies are relatively rare. There’s also a slight possibility it can trigger acid reflux or heartburn. The possibility of this side effect increases if you take a medication for heartburn.
Does olive leaf extract cause breast cancer?
( Click here to learn about the causes of the dominance.) Another reason why olive leaf extract benefits and side effects far outweigh the former is its effects on blood sugar.
Does evoo help with cholesterol?
In addition to polyphenols, there are other antioxidants in this extract. And these other compounds are also not found in EVOO. Moreover, many of these compounds also show promise in anti-cancer research.
Can OLE cause rash?
According to this supplement company, there are four possible side effects. It’s possible it can produce a rash. This is potentially because of the detoxification process.
Does olive leaf extract lower blood pressure?
In fact, blood pressure was lowered to the same levels as those who took the drug. Olive leaf extract benefits and side effects for blood pressure seem to favor this natural supplement. However, larger studies need to occur before concluding this definitively.
Is olive leaf extract better than olive oil?
The olive leaf extract benefits and side effects include many of the former and few, if any, of the latter. In fact, it might even be better for your health than the oil. Unless you’re completely new to nutritional therapy, you already know that extra virgin olive oil (EVOO) is extremely good for your health.

Uses
Dosage and Preparation
- Olive leave extract supplements come in capsules, softgels, and tinctures. The standard dose ranges between 500 milligrams (mg) and 1,000 mg daily. Most supplement labels recommend splitting the dose. That gives you between 250 mg and 500 mg. It should be taken two to four times a day with food. Always follow the instructions on the label when taking supplements. Or t…
Possible Side Effects
- Little is known about the safety of regularly taking olive leaf extract. But there's some concern it may trigger mild side effects like stomach pain and headache. Some people may develop an allergy to olive leaf extract. The pollen from the olive leaf can trigger severe respiratory allergic reactions in people allergic to plants in the Oleaceae family,6including: 1. Ash trees 2. Forsythia …
What to Look For
- Supplements aren't tested and regulated like drugs. Sometimes, the dosages and ingredients on the label don't match what's in the bottle.10 When buying supplements, look for products that have been certified by one of the following: 1. ConsumerLab 2. NSF International 3. U.S. Pharmacopeia These are independent labs that evaluate supplements for purity. They help …
Summary
- Olive leaf extract may help treat hypertension, diabetes, cold sores, and more, but science isn't settled. Research continues to look into how the medicinal properties of olive leaf extract may be used. Be sure to talk with your healthcare provider before taking olive leaf extract or any supplement. Watch for side effects and drug interactions when you add olive leaf extract to you…
A Word from Verywell
- Research isn't yet certain enough to recommend olive leaf extract for any condition. Self-treating a condition and avoiding or delaying standard medical care may have serious consequences. If you're considering olive leaf extract for any health purpose, talk to your healthcare provider first.