Olives: A Weapon Against Obesity?

In a world struggling with rising obesity rates and the associated diabetes crisis, elenolic acid, a natural compound found in olives, is stepping into the spotlight.

This humble ingredient of your favourite Mediterranean salad is now in the limelight for its impressive potential to combat weight gain and regulate blood sugar levels.

This is the achievement of Professor Dongmin Liu and his research team from the Department of Human Nutrition, Foods, and Exercise at Virginia Tech. Their ongoing investigations focus on identifying bioactive compounds in natural products that could contribute to the treatment of diabetes.

How does elenolic acid work?

In the microscopic world of our bodies, the intestine harbours L-cells. During meals, these release two important metabolic hormones, GLP-1 and PYY. These hormones are the body's natural soldiers, defending against excessive eating and working to keep blood sugar levels under control.

This is where elenolic acid comes into play. The researchers discovered that this compound, found in ripe olives and extra virgin olive oil, triggers these hormones in the intestine. The process involved the conversion of oleuropein, a precursor of elenolic acid, into the compound, which is less costly than direct extraction from olives.

«Overall, the study showed that elenolic acid from olives has promising effects on hormone secretion and metabolic health, particularly in relation to obesity and diabetes», said Liu.

Professor Liu and his team discovered that elenolic acid had further tricks up its sleeve. It reduced food intake, thereby promoting weight loss.

On the other hand, it increased circulating PYY and GLP-1 levels and suppressed the overexpression of agouti-related peptide, which is known to promote eating behavior and weight gain.

The olive as a fountain of health

«Lifestyle changes and public health measures have only limited impact on the rising prevalence of obesity, one of the most important risk factors for type 2 diabetes», said Liu.

«Available medications for the treatment of obesity are ineffective at maintaining weight loss, expensive, and/or carry potential long-term safety risks. Our goal was to develop safer, cheaper, and more convenient multi-targeting agents that can prevent the onset of metabolic disorders and type 2 diabetes.»

The answer to the question of how to combat obesity and diabetes might lie in an olive grove, where the humble olive may hold the key to better health. This promising area of research is gaining attention among scientists and health experts alike.

Preventive health

Incorporating elenolic acid into the diet or into dietary supplements could make a decisive contribution to preventive healthcare. While traditional medicine has long valued the power of certain foods, modern medicine often emphasizes treatment over prevention.

Yet with compounds such as elenolic acid proving to be promising, a new era of nutritional science may be dawning.

Imagine that food-based interventions for the prevention of diseases such as obesity and diabetes become the norm. This shift could reduce our dependence on medications and relieve healthcare systems worldwide.

You can help all animals and our planet with compassion. Choose empathy on your plate and in your glass. Go vegan.