¿Sabías que el jamón ibérico contiene ácido oleico, el mismo que el aceite de oliva?

Did you know that Iberian ham contains oleic acid, the same as olive oil?

Written by: Maximiliano Portes

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Published on

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Time to read 5 min

Iberian Ham: A Nutritional Treasure Rich in Oleic Acid


Have you ever enjoyed a thin slice of Iberian ham and wondered why it's considered not only a gastronomic delicacy but also a food with healthy properties? The answer lies in its composition, specifically in a component it shares with one of the pillars of the Mediterranean diet: oleic acid, the same acid found in olive oil. This nutritional discovery has transformed Iberian ham into more than just a gourmet treat; it has elevated it to the status of a functional food with proven health benefits. Join me on this journey to discover why this traditional Spanish product hides secrets that modern science is only now beginning to fully appreciate.


What is oleic acid and why is it important?


Before delving into the fascinating world of Iberian ham, it's helpful to understand exactly what oleic acid is and why its presence in our diet is so important. beneficial.

Chemical Properties of Oleic Acid

Oleic acid is a monounsaturated fatty acid (known as omega-9) that occurs naturally in animal fats and vegetable oils. Its chemical structure gives it special properties that differentiate it from saturated or polyunsaturated fats. Technically, it has a double bond in its carbon chain, which gives it greater fluidity and stability than other fats.

Does it sound complex?

Think of it this way: unlike saturated fats, which are usually solid at room temperature (like butter), fats rich in oleic acid remain liquid or semi-liquid, like olive oil or the marbling in Iberian ham.

Health Benefits of Oleic Acid

Science has shown that oleic acid offers multiple benefits for our bodies:

  • Improves the lipid profile, increasing HDL cholesterol (the "good" cholesterol) and reducing LDL cholesterol (the "bad" cholesterol)

  • Helps prevent cardiovascular disease

  • Has natural anti-inflammatory properties

  • Helps regulate blood pressure

  • Improves insulin sensitivity, potentially benefiting people with type 2 diabetes 2

  • Promotes the absorption of fat-soluble vitamins (A, D, E and K)


Isn't it fascinating? The same component that makes olive oil so nutritionally valuable is present in significant amounts in Iberian ham. But how does it get there? The answer takes us directly to the origins of this legendary product.

Iberian Ham: Origin


Iberian ham is not simply a product; it is the result of a centuries-old tradition perfected over generations. Its nutritional quality begins long before it reaches your table.

The Dehesa: Home of the Iberian Pig

The dehesa is a unique ecosystem in the world, a Mediterranean forest modified by humans that combines holm oaks, cork oaks, and other species with pastureland. This unique environment is found mainly in southwestern Spain and in some areas of Portugal. This ecosystem is not only important from an environmental point of view, but it also constitutes the natural habitat of the Iberian pig. The dehesa provides these animals with an ideal space to develop in semi-freedom, where they can feed on the natural resources that surround them. Iberian Pig Diet: The Basis of Its Nutritional Profile The diet of the Iberian pig largely determines the amount of oleic acid present in its meat. And this is where we find one of the most important keys: The montanera and its influence on oleic acid The montanera is the period in which Iberian pigs feed mainly on acorns and grass in the dehesa. This phase generally occurs between October and February, coinciding with the natural acorn fall from holm oaks and cork oaks. What's so special about acorns? They are extraordinarily rich in oleic acid. During this period, Iberian pigs can consume between 6 and 10 kg of acorns daily, causing their bodies to accumulate large amounts of oleic acid in their fat tissue. This natural process is almost magical: the pig transforms the acorn into fat infiltrated into its muscles with a high oleic acid content, very similar to the composition of olive oil. This intramuscular fat is what gives Iberian ham its characteristic melt-in-your-mouth texture and its unmistakable flavor.


Iberian ham is the fruit of a centuries-old tradition, where the ecosystem of the dehesa (pastureland) and the acorn-based diet during the montanera (acorn season) generate its unmistakable flavor. Texture and high oleic acid content

Oleic acid content in Iberian ham


Scientific studies have determined that approximately 50% to 55% of the fat in acorn-fed Iberian ham is composed of oleic acid. This proportion is exceptional for a meat product and explains many of its organoleptic and health properties.

To give you an idea, a 100-gram serving of acorn-fed Iberian ham can provide between 8 and 10 grams of oleic acid.

In addition, it contains other beneficial monounsaturated and polyunsaturated fatty acids, complete proteins, B vitamins (especially B1, B3, and B12), and minerals such as iron, zinc, phosphorus, magnesium, and potassium.

Comparison with olive oil

The similarity between the fat composition of acorn-fed Iberian ham and extra virgin olive oil is striking. Olive oil contains between 55% and 83% oleic acid, depending on the olive variety, while acorn-fed Iberian ham reaches 55% in its fat composition.

This similarity is not accidental: both Mediterranean products share a common origin in the Mediterranean ecosystem. The Iberian pig, by feeding on acorns (which also contain oleic acid), metabolizes and concentrates this fatty acid in its tissues, giving the ham a lipid profile similar to that of "liquid gold." Of course, there are important differences: Iberian ham is a protein-rich food, while olive oil is purely fatty. However, both share a common denominator that makes them pillars of the Mediterranean diet: their high oleic acid content.

Benefits of consuming Iberian ham for cardiovascular health

Contrary to what one might think of a cured meat product, acorn-fed Iberian ham, consumed in moderation, can be part of a heart-healthy diet.

Scientific studies on Iberian ham and health

Several studies conducted by Spanish universities have shown that regular but moderate consumption of acorn-fed Iberian ham (about 50 grams per day) does not increase cardiovascular risk factors and may even improve some lipid parameters.

A study from the University of Extremadura found that people who regularly consumed acorn-fed Iberian ham for six weeks experienced an increase in HDL cholesterol (the "good" cholesterol) and a reduction in oxidation of LDL cholesterol, two important factors for the prevention of atherosclerosis. Another study conducted by researchers at the Complutense University of Madrid discovered that the peptides present in Iberian ham after its curing process have antihypertensive properties, potentially helping to regulate blood pressure. Furthermore, there are four Protected Designations of Origin (PDOs) for Iberian ham in Spain: Jabugo, Dehesa de Extremadura, Guijuelo, and Los Pedroches. These seals guarantee not only the quality of the product but also respect for traditional production methods.

When buying, also pay attention to aspects such as:

  • The fat: it should have a yellowish or pinkish color (a sign of high oleic acid content) and be shiny and unctuous

  • The hoof: acorn-fed hams usually have a black and elongated hoof

  • The aroma: it should be intense but pleasant, without strange odors

  • The marbling: the infiltration of fat into the muscle should be visible, creating the characteristic marbled appearance

A good acorn-fed Iberian ham should literally melt in your mouth, leaving an unctuous sensation due to its high oleic acid content.

A healthy delicacy with moderation

Iberian ham, especially acorn-fed ham, represents one of the gastronomic jewels of Spanish culture, which also provides nutritional benefits thanks to its oleic acid content. The same "good" fat that makes olive oil such a healthy food is present in this traditional product, supporting the wisdom of our ancestors who already sensed its beneficial properties. However, like all foods, it should be consumed in moderation: its salt content and total calorie count make it advisable to enjoy it as part of a balanced diet, not as the basis of a diet.