Acide Gras Insaturé, Acide Gras Mono-Insaturé, Acide Gras n-9, Acide Gras Oméga 9, Common Olive, Extra Virgin Olive Oil, Feuille d'Olivier, Green Olive, Huile d'Assaisonnement, Huile d'Olive, Huile d'Olive Extra Vierge, Huile d'Olive Vierge, Jaitun, Manzanilla Olive Fruit, Monounsaturated Fatty Acid, n-9 Fatty Acid, Oleae europaea, Oleae Folium, Olivae Oleum, Olive Fruit, Olive Fruit Pulp, Olive Leaf, Olive Oil, Olive Pulp, Olives, Olivo, Omega-9 Fatty Acids, Pulpe d'Olive, Salad Oil, Sweet Oil, Unsaturated Fatty Acid, Virgin Olive Oil.
Olive is a tree. People use the oil from the fruit and seeds, water extracts of the fruit, and the leaves to make medicine.
Olive oil is used to prevent heart attack and stroke (cardiovascular disease), breast cancer, colorectal cancer, rheumatoid arthritis, and migraine headache.
Some people use olive oil to treat constipation, high cholesterol, high blood pressure, blood vessel problems associated with diabetes, and pain associated ear infections, arthritis, and gallbladder disease. Olive oil is also used to treat jaundice, intestinal gas, and meteorism (swelling of the abdomen due to gas).
Some people also use olive oil to boost bacteria in the gut and as a “cleanser” or “purifier.”
Olive oil is applied to the skin (used topically) for earwax, ringing ears (tinnitus), pain in the ears, lice, wounds, minor burns, psoriasis, stretch marks due to pregnancy, and for protecting the skin from ultraviolet (UV) damage after sun exposure.
In foods, olive oil is used as a cooking and salad oil.
In manufacturing, olive oil is used to make soaps, commercial plasters and liniments; and to delay setting in dental cements.
Olive oil is classified, in part, according to acid content, measured as free oleic acid. Extra virgin olive oil contains a maximum of 1% free oleic acid, virgin olive oil contains 2%, and ordinary olive oil contains 3.3%. Unrefined olive oils with more than 3.3% free oleic acid are considered “unfit for human consumption.”
Olive oil that is mixed with a gas called ozone (ozonated olive oil) is promoted for everything from bee stings and insect bites to bacterial and fungal skin infections to cancer. The Food and Drug Administration (FDA) allows the use of ozone to fight bacteria on food, including meat and poultry, but the food industry has been slow to adopt it. Ozone is extremely unstable and must be produced on site. Topical olive oil products that are claimed to contain ozone are unlikely to remain stable during shipping. There are no clinically proven medical uses of ozone or ozonated olive oil. Antibacterial agents that are applied to the skin are a better choice.
Olive leaf is used for treating viral, bacterial, and other infections including influenza, swine flu, the common cold, meningitis, Epstein-Barr Virus (EBV), encephalitis, herpes, shingles, HIV/ARC/AIDS, and hepatitis B. Olive leaf is also used for pneumonia; chronic fatigue: tuberculosis (TB); gonorrhea; fever; malaria; dengue; “blood poisoning” (bacterial infections in the bloodstream); severe diarrhea; and infections in the teeth, ears, and urinary tract, and infections following surgery. Other uses include high blood pressure, diabetes, hay fever, improving kidney and digestive function, and increasing urine flow.
Water extracts of olive fruit pulp are used for rheumatoid arthritis and osteoarthritis.
How does it work?
Fatty acids in olive oil seem to decrease cholesterol levels and have anti-inflammatory effects. Olive leaf and olive oil might lower blood pressure.
Likely Effective for...
- Constipation. Taking olive oil by mouth is effective for reducing constipation.
Possibly Effective for...
- Breast cancer. People who consume more olive oil in their diet seem to have a lower risk of developing breast cancer.
- Heart disease. Replacing saturated fats in the diet with olive oil can reduce risk factors for heart disease and stroke, including reducing blood pressure and cholesterol. Adding olive oil to the diet seems to help prevent a first heart attack. Some research shows a high dietary intake of olive oil (54 grams/day; about 4 tablespoons) can reduced the risk of first heart attack by 82% when compared with a low intake of 7 grams of olive oil or less per day. Including 1 liter per week of extra-virgin olive oil in a Mediterranean diet for around 5 years also seems to help prevent heart attacks and strokes in people over age 55 who have diabetes or a combination of heart disease risk factors (smoking, high blood pressure, high LDL (“bad”) cholesterol, low HDL (“good”) cholesterol, overweight, or with a family history of heart disease). A Mediterranean diet has high intakes of fruit, nuts, vegetables and cereals, moderate intake of fish and poultry, and low intake of dairy products, red meat, processed meats, and sweets.
The FDA now allows labels on olive oil and on food that contains olive oil to state that limited, but not conclusive evidence, suggests that consuming 23 grams/day (about 2 tablespoons) of olive oil instead of saturated fats may reduce the risk of heart disease.
- Colorectal cancer. Research suggests that people who consume more olive oil in their diet have a lower risk of developing colorectal cancer.
- High cholesterol. Using olive oil in the diet instead of saturated fat can reduce total cholesterol levels in people with high cholesterol. However, some research suggests other dietary oils such as sunflower and rapeseed (canola) might reduce “bad” low-density lipoprotein (LDL) cholesterol and another type of cholesterol called apolipoprotein B better than olive oil.
- High blood pressure. Adding generous amounts of extra virgin olive oil to the diet and continuing with the usual treatments for high blood pressure can improve blood pressure over 6 months in people with high blood pressure. In some cases, people with mild to moderate high blood pressure can actually lower their dose of blood pressure medication or even stop taking medication altogether. However, do not adjust your medications without your healthcare provider's supervision. Taking olive leaf extract also seems to lower blood pressure in patients with high blood pressure.
Possibly Ineffective for...
- Earwax. Applying olive oil to the skin does not appear to soften earwax.
- Ear infections. Applying olive oil to the skin does not appear to reduce pain in children with ear infections.
Insufficient Evidence to Rate Effectiveness for...
- Red, itchy skin (eczema). Early research suggests that applying a mixture of honey, beeswax, and olive oil along with standard care seems to improve eczema.
- Diabetes. Compared to polyunsaturated oils such as sunflower oil, olive oil in a Mediterranean-type diet might reduce the risk of “hardening of the arteries” (atherosclerosis) in people with diabetes. However, more research is needed.
- Migraine headache. Taking olive oil daily for 2 months seems to reduce the frequency and severity of migraine headaches. However, more research is needed.
- Osteoarthritis. Developing research shows that taking a freeze-dried water extract of olive fruit decreases pain and increases mobility in people with osteoarthritis.
- Ovarian cancer. Research suggests that women who consume more olive oil in their diet have a lower risk of developing ovarian cancer.
- Red, flaky skin (psoriasis). Early research suggests that applying a mixture of honey, beeswax, and olive oil to the skin along with standard care can improve psoriasis.
- Rheumatoid arthritis. Some research suggests that people whose diet includes a high amount of olive oil have a lower risk of developing rheumatoid arthritis. However, early research shows that taking a water extract of olive fruit does not significantly improve symptoms of rheumatoid arthritis.
- Ringworm (Tinea corporis). Early research suggests that applying a mixture of honey, beeswax, and olive oil to the skin is effective for treating ringworm.
- Jock itch (Tinea cruris). Early research suggests that applying a mixture of honey, beeswax, and olive oil to the skin is effective for treating jock itch.
- Yeast infection of the skin (Tinea versicolor). Early research suggests that applying a mixture of honey, beeswax, and olive oil to the skin is effective for treating yeast infection.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
Olive oil is LIKELY SAFE when taken appropriately by mouth or applied to the skin. Olive oil can be used safely as 14% of total daily calories. This is about 2 tablespoons (28 grams) daily. Up to 1 liter per week of extra-virgin olive oil has been used safely as part of a Mediterranean-style diet for up to 5.8 years.
Olive oil taken by mouth is well-tolerated. When applied to the skin, delayed allergic responses and contact dermatitis have been reported.
There is insufficient reliable information available about the safety of olive leaf, although so far olive leaf and fruit pulp have not been associated with significant side effects in clinical studies.
Olive trees produce pollen that can cause seasonal respiratory allergy in some people.
Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking olive products if you are pregnant or breast-feeding. Do not use amounts greater than the amount commonly found in foods.
Diabetes: Olive oil might lower blood sugar. People with diabetes should check their blood sugar when using olive oil.
Surgery: Olive oil might affect blood sugar. Using olive oil might affect blood sugar control during and after surgery. Stop taking olive oil 2 weeks before surgery.
Medications for diabetes (Antidiabetes drugs)Interaction Rating: Moderate Be cautious with this combination.Talk with your health provider.
Olive and olive oil might decrease blood sugar. Diabetes medications are also used to lower blood sugar. Taking olive oil along with diabetes medications might cause your blood sugar to go too low. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.
Some medications used for diabetes include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.
Medications for high blood pressure (Antihypertensive drugs)Interaction Rating: Moderate Be cautious with this combination.Talk with your health provider.
Olive seems to decrease blood pressure. Taking olive along with medications for high blood pressure might cause your blood pressure to go too low.
Some medications for high blood pressure include captopril (Capoten), enalapril (Vasotec), losartan (Cozaar), valsartan (Diovan), diltiazem (Cardizem), Amlodipine (Norvasc), hydrochlorothiazide (HydroDIURIL), furosemide (Lasix), and many others.
Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs)Interaction Rating: Moderate Be cautious with this combination.Talk with your health provider.
Olive oil might slow blood clotting. Taking olive oil along with medications that also slow clotting might increase the chances of bruising and bleeding.
Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.
The following doses have been studied in scientific research:
- For constipation: 30 mL of olive oil.
- For high blood pressure: 30-40 grams per day of extra-virgin olive oil as part of the diet. 400 mg of olive leaf extract four times daily has also been used for high blood pressure.
- For high cholesterol: 23 grams of olive oil per day (about 2 tablespoons) providing 17.5 grams of mono unsaturated fatty acids in place of saturated fats in the diet.
- For preventing heart disease and heart attacks: 54 grams per day (about 4 tablespoons) has been used. As a part of a Mediterranean diet, consuming up to 1 liter of extra-virgin olive oil per week has also been used.
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Konlee, M. A new triple combination therapy. Posit.Health News 1998;(No 17):12-14. View abstract.
Lee-Huang, S., Zhang, L., Huang, P. L., Chang, Y. T., and Huang, P. L. Anti-HIV activity of olive leaf extract (OLE) and modulation of host cell gene expression by HIV-1 infection and OLE treatment. Biochem Biophys Res Commun. 8-8-2003;307(4):1029-1037. View abstract.
Markin, D., Duek, L., and Berdicevsky, I. In vitro antimicrobial activity of olive leaves. Mycoses 2003;46(3-4):132-136. View abstract.
O'Brien, N. M., Carpenter, R., O'Callaghan, Y. C., O'Grady, M. N., and Kerry, J. P. Modulatory effects of resveratrol, citroflavan-3-ol, and plant-derived extracts on oxidative stress in U937 cells. J Med Food 2006;9(2):187-195. View abstract.
Aguila MB, Pinheiro AR, Mandarim-de-Lacerda CA. Spontaneously hypertensive rats left ventricular cardiomyocyte loss attenuation through different edible oils long-term intake. Int J Cardiol 2005;100:461-6. View abstract.
Aguila MB, Sa Silva SP, Pinheiro AR, Mandarim-de-Lacerda CA. Effects of long-term intake of edible oils on hypertension and myocardial and aortic remodelling in spontaneously hypertensive rats. J Hypertens 2004;22:921-9. View abstract.
Al Waili, N. S. An alternative treatment for pityriasis versicolor, tinea cruris, tinea corporis and tinea faciei with topical application of honey, olive oil and beeswax mixture: an open pilot study. Complement Ther.Med. 2004;12(1):45-47. View abstract.
Al Waili, N. S. Topical application of natural honey, beeswax and olive oil mixture for atopic dermatitis or psoriasis: partially controlled, single-blinded study. Complement Ther.Med. 2003;11(4):226-234. View abstract.
Aziz NH, Farag SE, Mousa LA, et al. Comparative antibacterial and antifungal effects of some phenolic compounds. Microbios 1998;93:43-54. View abstract.
Beauchamp GK, Keast RS, Morel D, et al. Phytochemistry: ibuprofen-like activity in extra-virgin olive oil. Nature 2005;437:45-6. View abstract.
Bisignano G, Tomaino A, Lo Cascio R, et al. On the in-vitro antimicrobial activity of oleuropein and hydroxytyrosol. J Pharm Pharmacol 1999;51:971-4. View abstract.
Bitler CM, Matt K, Irving M, et al. Olive extract supplement decreases pain and improves daily activities in adults with osteoarthritis and decreases plasma homocysteine in those with rheumatoid arthritis. Nutri Res 2007;27:470-7.
Bosetti, C., Negri, E., Franceschi, S., Talamini, R., Montella, M., Conti, E., Lagiou, P., Parazzini, F., and La Vecchia, C. Olive oil, seed oils and other added fats in relation to ovarian cancer (Italy). Cancer Causes Control 2002;13(5):465-470. View abstract.
Brackett RE. Letter Responding to Health Claim Petition dated August 28, 2003: Monounsaturated Fatty Acids from Olive Oil and Coronary Heart Disease. CFSAN/Office of Nutritional Products, Labeling and Dietary Supplements. 2004 Nov 1; Docket No 2003Q-0559. Available at: http://www.fda.gov/ohrms/dockets/dailys/04/nov04/110404/03q-0559-ans0001-01-vol9.pdf.
Braga, C., La Vecchia, C., Franceschi, S., Negri, E., Parpinel, M., Decarli, A., Giacosa, A., and Trichopoulos, D. Olive oil, other seasoning fats, and the risk of colorectal carcinoma. Cancer 2-1-1998;82(3):448-453. View abstract.
Bruneton J. Pharmacognosy, Phytochemistry, Medicinal Plants. Paris: Lavoisier Publishing, 1995.
Cherif S, Rahal N, Haouala M, et al. [A clinical trial of a titrated Olea extract in the treatment of essential arterial hypertension]. J Pharm Belg 1996;51:69-71. View abstract.
Estruch R, Ros E, Salas-Salvado J, et al. Primary prevention of cardiovascular disease with a Mediterranean diet. N Engl J Med 2013.. View abstract.
Fernandez-Jarne E, Martinez-Losa E, Prado-Santamaria M, et al. Risk of first non-fatal myocardial infarction negatively associated with olive oil consumption: a case-control study in Spain. Int J Epidemiol 2002;31:474-80. View abstract.
Ferrara LA, Raimondi AS, d'Episcopo L, et al. Olive oil and reduced need for antihypertensive medications. Arch Intern Med 2000;160:837-42. View abstract.
Fischer S, Honigmann G, Hora C, et al. [Results of linseed oil and olive oil therapy in hyperlipoproteinemia patients]. Dtsch Z Verdau Stoffwechselkr 1984;44:245-51. View abstract.
Harel Z, Gascon G, Riggs S, et al. Fish oil vs olive oil in the management of recurrent headaches in adolescents. Advancing Children's Health 2000. Joint Meeting of Pediatric Academic Soc and Am Acad of Pediatrics; Abstract 30.
Hoberman A, Paradise JL, Reynolds EA, et al. Efficacy of Auralgan for treating ear pain in children with acute otitis media. Arch Pediatr Adolesc Med 1997;151:675-8. View abstract.
Isaksson M, Bruze M. Occupational allergic contact dermatitis from olive oil in a masseur. J Am Acad Dermatol 1999;41:312-5. View abstract.
Kamien M. Practice tip. Which cerumenolytic? Aust Fam Physician 1999;28:817,828. View abstract.
Katan MB, Zock PL, Mensink RP. Dietary oils, serum lipoproteins, and coronary heart disease. Am J Clin Nutr 1995;61:1368S-73S. View abstract.
Keys A, Menotti A, Karvonen MJ , et al. The diet and 15-year death rate in the seven countries study. Am J Epidemiol 1986;124:903-15. View abstract.
la Vecchia C, Negri E, Franceschi S, et al. Olive oil, other dietary fats, and the risk of breast cancer (Italy). Cancer Causes Control 1995;6:545-50. View abstract.
Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch Allergy Immunol 1996;111:210-7. View abstract.
Lichtenstein AH, Ausman LM, Carrasco W, et al. Effects of canola, corn, and olive oils on fasting and postprandial plasma lipoproteins in humans as part of a National Cholesterol Education Program Step 2 diet. Arterioscler Thromb 1993;13:1533-42. View abstract.
Linos A, Kaklamani VG, Kaklamani E, et al. Dietary factors in relation to rheumatoid arthritis: a role for olive oil and cooked vegetables? Am J Clin Nutr 1999;70:1077-82. View abstract.
Linos, A., Kaklamanis, E., Kontomerkos, A., Koumantaki, Y., Gazi, S., Vaiopoulos, G., Tsokos, G. C., and Kaklamanis, P. The effect of olive oil and fish consumption on rheumatoid arthritis--a case control study. Scand.J.Rheumatol. 1991;20(6):419-426. View abstract.
Madigan C, Ryan M, Owens D, et al. Dietary unsaturated fatty acids in type 2 diabetes: higher levels of postprandial lipoprotein on a linoleic acid-rich sunflower oil diet compared with an oleic acid-rich olive oil diet. Diabetes Care 2000;23:1472-7. View abstract.
Martin-Moreno JM, Willett WC, Gorgojo L, et al. Dietary fat, olive oil intake and breast cancer risk. Int J Cancer 1994;58:774-80. View abstract.
Mata P, Alvarez-Sala LA, Rubio MJ, et al. Effects of long-term monounsaturated- vs polyunsaturated-enriched diets on lipoproteins in healthy men and women. Am J Clin Nutr 1992;55:846-50. View abstract.
Mensink RP, Katan MB. An epidemiological and an experimental study on the effect of olive oil on total serum and HDL cholesterol in healthy volunteers. Eur J Clin Nutr 1989;43 Suppl 2:43-8. View abstract.
Nagyova, A., Haban, P., Klvanova, J., and Kadrabova, J. Effects of dietary extra virgin olive oil on serum lipid resistance to oxidation and fatty acid composition in elderly lipidemic patients. Bratisl.Lek.Listy 2003;104(7-8):218-221. View abstract.
Nydahl, M., Gustafsson, I. B., Ohrvall, M., and Vessby, B. Similar effects of rapeseed oil (canola oil) and olive oil in a lipid-lowering diet for patients with hyperlipoproteinemia. J.Am.Coll.Nutr. 1995;14(6):643-651. View abstract.
Pedersen A, Baumstark MW, Marckmann P, et al. An olive oil-rich diet results in higher concentrations of LDL cholesterol and a higher number of LDL subfraction particles than rapeseed oil and sunflower oil diets. J Lipid Res 2000;41:1901-11.. View abstract.
Petroni, A., Blasevich, M., Salami, M., Papini, N., Montedoro, G. F., and Galli, C. Inhibition of platelet aggregation and eicosanoid production by phenolic components of olive oil. Thromb.Res. 4-15-1995;78(2):151-160. View abstract.
Ruiz-Gutierrez V, Muriana FJ, Guerrero A, et al. Plasma lipids, erythrocyte membrane lipids and blood pressure of hypertensive women after ingestion of dietary oleic acid from two different sources. J Hypertens 1996;14:1483-90. View abstract.
Secondary Direct Food Additives Permitted in Food for Human Consumption. Safe use of ozone when used as a gas or dissolved in water as an antimicrobial agent on food, including meat and poultry. Federal Register 66 http://www.fda.gov/OHRMS/Dockets/98fr/062601a.htm (Accessed 26 June 2001).
Sirtori, C. R., Gatti, E., Tremoli, E., Galli, C., Gianfranceschi, G., Franceschini, G., Colli, S., Maderna, P., Marangoni, F., Perego, P., and . Olive oil, corn oil, and n-3 fatty acids differently affect lipids, lipoproteins, platelets, and superoxide formation in type II hypercholesterolemia. Am.J.Clin.Nutr. 1992;56(1):113-122. View abstract.
Sirtori, C. R., Tremoli, E., Gatti, E., Montanari, G., Sirtori, M., Colli, S., Gianfranceschi, G., Maderna, P., Dentone, C. Z., Testolin, G., and . Controlled evaluation of fat intake in the Mediterranean diet: comparative activities of olive oil and corn oil on plasma lipids and platelets in high-risk patients. Am.J.Clin.Nutr. 1986;44(5):635-642. View abstract.
Stoneham M, Goldacre M, Seagroatt V, Gill L. Olive oil, diet and colorectal cancer: an ecological study and a hypothesis. J Epidemiol Community Health 2000;54:756-60. View abstract.
The IOOC's Trade Standard Applying to Olive Oil and Olive Pomace Oil. Available at: sovrana.com/ioocdef.htm (Accessed 23 June 2004).
Togna GI, Togna AR, Franconi M, et al. Olive oil isochromans inhibit human platelet reactivity. J Nutr 2003;133:2532-6.. View abstract.
Trevisan M, Krogh V, Freudenheim J, et al. Consumption of olive oil, butter, and vegetable oils and coronary heart disease risk factors. The Research Group ATS-RF2 of the Italian National Research Council. JAMA 1990;263:688-92. View abstract.
Trichopoulou A, Katsouyanni K, Stuver S, et al. Consumption of olive oil and specific food groups in relation to breast cancer risk in Greece. J Natl Cancer Inst 1995;87:110-6. View abstract.
Tsimikas S, Philis-Tsimikas A, Alexopoulos S, et al. LDL isolated from Greek subjects on a typical diet or from American subjects on an oleate-supplemented diet induces less monocyte chemotaxis and adhesion when exposed to oxidative stress. Arterioscler Thromb Vasc Biol 1999;19:122-30. View abstract.
van Joost T, Smitt JH, van Ketel WG. Sensitization to olive oil (olea europeae). Contact Dermatitis 1981;7:309-10.
Williams, C. M. Beneficial nutritional properties of olive oil: implications for postprandial lipoproteins and factor VII. Nutr.Metab Cardiovasc.Dis. 2001;11(4 Suppl):51-56. View abstract.
Zambon A, Sartore G, Passera D, et al. Effects of hypocaloric dietary treatment enriched in oleic acid on LDL and HDL subclass distribution in mildly obese women. J Intern Med 1999;246:191-201. View abstract.
Zoppi, S., Vergani, C., Giorgietti, P., Rapelli, S., and Berra, B. Effectiveness and reliability of medium term treatment with a diet rich in olive oil of patients with vascular diseases. Acta Vitaminol.Enzymol. 1985;7(1-2):3-8. View abstract.