Why is EVOO (unrefined) the best ally for your brain and gut?
Indice
How does EVOO (unrefined) help balance the microbiota and improve gut health?
In recent years, science has turned its attention toward the Mediterranean diet, and more specifically, toward one of its star components: olive oil. However, not all olive oils are the same. A recent study conducted by researchers at the Rovira i Virgili University in Spain, and reported by the portal Zamin.uz, has revealed that the quality and processing method of olive oil play a much more crucial role in human health, especially in maintaining brain functions, than previously believed.
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The study and its methodology
The research focused on analyzing how olive oil consumption influences the body over the long term. To do this, scientists conducted an exhaustive two-year follow-up on a group of 656 participants. The study subjects were between 55 and 75 years old, were overweight or obese, and suffered from metabolic syndrome, a set of conditions that increase the risk of heart disease and diabetes.
During this period, the volunteers’ daily diets were rigorously monitored, paying special attention to the type of olive oil consumed (refined or unrefined). In addition, the composition of their gut microbiota was analyzed, and periodic tests were performed to measure cognitive indicators related to thinking, mental acuity, and memory.
Results: Brain and Microbiota
The findings were revealing. Those participants who regularly consumed unrefined olive oil (commonly known as virgin or extra virgin) showed significantly better cognitive functions compared to those who consumed refined versions.
The most fascinating part of the study is the discovered link with the digestive system. Unrefined oil consumers presented a greater diversity of gut bacteria. The authors note that the gut microbiota acts as a biological “bridge” that directly influences the brain. Certain beneficial bacteria, whose proliferation is stimulated by the components of high-quality olive oil, act as mediators in protecting neurons and maintaining memory.
How olive oil protects your brain
Renowned neurosurgeon Dr. John Gorecki explains that how olive oil protects your brain is a fascinating process that begins in the digestive system through the gut-brain axis.
According to the expert, this “liquid gold” acts as high-quality fuel that protects neurons through a combination of healthy fats and polyphenols that reduce neuroinflammation and strengthen the blood-brain barrier.
A key aspect of this benefit is its impact on the microbiome: the consumption of extra virgin olive oil (EVOO) promotes the growth of beneficial bacteria such as Adlercreutzia, which produces anti-inflammatory compounds that travel to the brain to improve memory and focus. In addition, olive oil contains oleocanthal, a substance that functions as a natural cleanup crew by helping eliminate beta-amyloid plaques, toxic proteins linked to the development of Alzheimer’s.
Dr. Gorecki highlights that consuming just half a tablespoon daily can significantly reduce the risk of death from dementia, while also combating oxidative stress that damages brain cells over time. To ensure these effects, it is essential to choose extra virgin varieties cold-pressed and packaged in dark bottles, since refining processes eliminate protective nutrients.
Ultimately, understanding how olive oil protects your brain allows you to transform the kitchen into the front line of defense against cognitive decline, integrating this simple yet powerful habit to maintain mental agility and long-term neurological health.
The Microbiome Study
A new study from the journal Microbiome reveals that regular consumption of extra virgin olive oil (EVOO) improves brain function and fights brain fog, especially in women over 50 years old. The research, conducted over two years with more than 600 participants, directly links EVOO’s polyphenols and antioxidants to a greater diversity of beneficial bacteria in the gut microbiota.
This improvement in the gut-brain axis optimizes neuronal communication, directly enhancing cognitive function, concentration, and long-term memory through a daily habit that is as simple as it is healthy.
Replacing animal fats with plant fats
A massive meta-analysis led by Harvard University, covering data from more than 100,000 people over 30 years, confirms that replacing animal fats with plant fats significantly reduces the risk of premature death.
The research highlights that the simple gesture of replacing just 5% of calories from saturated fats (such as butter or lard) with unsaturated fats of plant origin can reduce overall mortality by 27%. The benefit is even greater when trans fats, associated with a drastic increase in cardiovascular and neurodegenerative diseases, are eliminated.
Benefits of Fat Swapping
| Animal Fat Source (Avoid) | Plant Alternative (Prioritize) | Health Impact |
| Butter and Lard | Olive and Canola Oil | Improves cholesterol profile. |
| Processed Red Meats | Nuts and Seeds | Reduces systemic inflammation. |
| Whole Dairy | Avocado and Legumes | Protects cognitive function. |
The study stresses that it is not about eliminating fats from the diet, but rather choosing those of plant origin. This change not only prevents heart attacks, but also slows down cognitive decline linked to aging, consolidating unsaturated fats as a fundamental pillar of longevity.
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Why doesn’t refined oil provide the same benefits as quality EVOO?
The fundamental difference lies in the production process. Unrefined olive oil is obtained exclusively through mechanical procedures (cold pressing) without the use of chemicals or excessive heat. This allows the final product to keep its bioactive substances,
Important Note: oliveoilextra.com promotes the consumption of extra virgin olive oil for its culinary qualities and health benefits. However, it should not replace any current medication or treatment without the guidance of a healthcare professional.