Experts have recommended storing olive oil in a cool, dry place away from light and heat and ensuring the container is tightly sealed after each use.
Incorporating olive oil into a balanced and healthy diet can provide several health benefits, including the following:
Protection of heart health
One of the most notable health benefits of olive oil is its high content of monounsaturated fats, particularly oleic acid, which has been linked to a reduced risk of cardiovascular diseases. These healthy fats help reduce inflammation and can positively influence blood cholesterol levels, supporting overall heart health.
A scientific study found that olive oil may help reduce the progression of arteriosclerosis — the hardening of the arteries caused by the buildup of fats and other substances on artery walls.
How olive oil has positive effect on bone health?
Strengthening bone health
Olive oil also has a positive effect on bone health. It contains polyphenols, a type of antioxidant compound, which research suggests may support bone formation and reduce the risk of bone loss. This makes olive oil particularly beneficial for individuals at risk of osteoporosis.
Reduction of inflammation in body
Inflammation is the body’s natural response to injury or illness. However, low-grade, long-term inflammation — known as chronic inflammation — increases the risk of several conditions, such as heart disease, type 2 diabetes, allergies, and certain types of cancer.
Studies have shown that components in olive oil — such as oleocanthal, oleacein, oleic acid, and oleuropein — may help reduce levels of various inflammation markers, including C-reactive protein (CRP) and interleukins.
Lowering risk of cognitive decline
As a source of monounsaturated fats and antioxidants like vitamin E and polyphenols, olive oil may help reduce inflammation and oxidative stress — both of which are linked to neurodegenerative diseases.
Research indicated that olive oil may support cognitive function and reduce the risk of Alzheimer's disease, dementia, and related conditions.
Cancer prevention
Phytochemicals present in olive oil may help reduce the development of cancerous tumours. According to one review, high consumption of olive oil may reduce the risk of cancer by up to 31%.
Some studies specifically highlight its protective effects against breast cancer, cancers of the digestive system (especially the upper gastrointestinal tract), and urinary tract cancers. These anti-cancer properties are largely attributed to compounds such as oleacein and other biologically active ingredients.
Olive oil is a fresh and delicate liquid that is sensitive to oxygen, heat, and light. Therefore, proper storage and handling — from harvest to kitchen — is essential to preserve its quality and freshness.
Exposure to light triggers a breakdown of olive oil’s chemical composition, leading to oxidation.
For this reason, experts recommend the following:
Store olive oil in a cool, dark, and dry place.
Avoid placing it near windows or directly beside the stove.
Do not leave the bottle open for extended periods.
Minimise air exposure, as contact with oxygen causes oxidation — a chemical reaction that spoils the oil.
Always seal the bottle tightly after each use.
Experts also advise using olive oil within a few months of opening the bottle to ensure the best flavour and nutritional value.
