18-01-2021
Extra Virgin Olive Oil: Nutritional Properties and Health Benefits
In recent years, the concept of functional and nutraceutical foods has grown, and the nutritional properties of extra virgin olive oil have been increasingly recognized as offering one of the most significant health benefits for humans. Thanks to its unique composition of micro and macro components, this precious oil has been hailed by many scholars as the first natural nutraceutical in human history. In this article, we will explore its health properties, focusing on the key benefits linked to components such as oleic acid and monounsaturated fatty acids.
Extra Virgin Olive Oil: A Natural Nutraceutical
The term "nutraceutical" was coined in 1989 by Stephen De Felice and refers to foods that provide proven health benefits beyond basic nutritional value. Extra virgin olive oil is often cited as one of the best examples of a nutraceutical food due to its rich composition of healthy fatty acids and natural antioxidants, including polyphenols and vitamin E.
Composition of Extra Virgin Olive Oil: Micro and Macro Components
One of the primary elements that grant extra virgin olive oil its nutraceutical status is its high content of oleic acid, a monounsaturated fatty acid that makes up between 55% and 83% of the total fatty acids. However, extra virgin olive oil also contains other essential fatty acids, such as omega-6 and omega-3, which contribute to its anti-inflammatory and protective effects. Additionally, the polyphenols in the oil are powerful antioxidants that play a crucial role in protecting cells from oxidative damage.
Health Benefits of Oleic Acid
Oleic acid is one of the key components of extra virgin olive oil and has been the subject of numerous scientific studies highlighting its positive effects on health. The main benefits include:
- Stimulation of bile and pancreatic secretion, aiding fat digestion.
- Enterogastrone effect, reducing stomach acid secretion and promoting better digestion.
- Antithrombotic effect, which, while not directly anti-aggregating, prolongs blood clotting time, reducing the risk of thrombosis.
- Immunological balance, thanks to its low content of arachidonic acid, reducing the occurrence of chronic inflammation.
The Role of Extra Virgin Olive Oil in Reducing LDL Cholesterol
One of the most studied effects of oleic acid is its ability to reduce LDL levels, the so-called "bad cholesterol." This fatty acid reduces the accumulation of linoleic acid in LDL, thus limiting the formation of pro-inflammatory lipid mediators that contribute to atherosclerosis. Studies like the famous Seven Countries Study have shown a correlation between high consumption of extra virgin olive oil and a lower incidence of cardiovascular diseases, especially in Mediterranean populations.
Variable Composition of Extra Virgin Olive Oil: Quality Factors
Not all extra virgin olive oils are created equal, and their composition can vary significantly depending on several factors, such as the olive cultivar used, climate conditions, and production techniques. For example, some oils produced in specific regions of Italy have higher oleic acid content than oils from other areas, such as Tunisia. This influences not only the flavor but also the oxidative stability and shelf life of the oil. An important quality parameter is the ratio of oleic acid to linoleic acid, where a value above seven indicates greater stability.
Extra Virgin Olive Oil and Digestibility
Oleic acid is also known for its high digestibility compared to other fatty acids. A study conducted by Massimo Cocchi at the University of Bologna demonstrated that low levels of oleic acid in platelets are a marker for ischemic cardiovascular diseases and depression. Conversely, increasing oleic acid levels in the blood can improve a patient’s overall condition.
Extra Virgin Olive Oil: A Cardiovascular Health Ally
Due to its composition of fatty acids and antioxidants, extra virgin olive oil is considered one of the best foods for preventing cardiovascular diseases. The Seven Countries Study, led by Ancel Keys, highlighted how Mediterranean populations with diets rich in extra virgin olive oil have much lower rates of coronary diseases compared to other populations.
Conclusion: A Superfood at the Heart of the Mediterranean Tradition
Extra virgin olive oil is more than just a condiment: it is a powerful ally for health thanks to its nutraceutical components. Incorporating this oil into a daily diet can improve cardiovascular health, prevent inflammation, and promote better digestion. Maintaining a diet rich in extra virgin olive oil not only enhances dishes but also provides natural protection against various diseases.
Extra Virgin Olive Oil: Harmony and Health in Every Drop
Discover the perfect balance of our extra virgin olive oil: harmonious, fruity, and rich in polyphenols for your daily well-being. Add a touch of health and flavor to your dishes with an oil that truly makes a difference!
Scientific Publications
- "The Health Benefits of Olive Oil" - Harvard T.H. Chan School of Public Health
This study examines the cardiovascular health benefits of extra virgin olive oil. - "Polyphenols and Cardiovascular Health: An Update" - Nutrients Journal
This scientific article explores the role of polyphenols in extra virgin olive oil and their effect on heart health. - "Seven Countries Study: Mediterranean Diet and Health" - American Heart Association
An in-depth study demonstrating the link between extra virgin olive oil and the reduction of heart disease.
