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    NEWS

    2025.06.11 Wed

    What is Oleic Acid? A Comparative Look at A5 Wagyu and Arita Wagyu Fat Quality

    What is Oleic Acid? A Comparative Look at A5 Wagyu and Arita Wagyu Fat Quality

    When people hear "A5 Wagyu," they often imagine rich marbling, melt-in-your-mouth texture, and luxury. While the appearance and marbling score of beef are commonly used evaluation criteria, truly delicious—and healthier—Wagyu is defined by something else:

    The quality of the fat.

    And one of the key components that defines that fat quality is oleic acid, the focus of this article.


    ■ What Is Oleic Acid in the First Place?

    Oleic acid is a monounsaturated fatty acid, also found in olive oil, and widely recognized for its health benefits. Studies suggest it may help lower bad cholesterol (LDL) levels and reduce the risk of arteriosclerosis and lifestyle-related diseases.

    Although oleic acid is present in all beef fat to some degree, its actual content varies greatly depending on the breed and feeding method.


    ■ How Do A5 Wagyu and Arita Wagyu Compare in Oleic Acid Content?

    Standard A5 Wagyu typically contains around 48–52% oleic acid. This can increase with premium feed and extended fattening periods, but not all A5 Wagyu meets the “high-oleic” threshold.

    In contrast, Arita Wagyu boasts an average of 58% or more, with some cuts reaching as high as 64% oleic acid. This remarkable difference stems from several key factors:

    • Raised without any antibiotics or growth hormones

    • Fed a custom grain mix for long, slow fattening

    • Raised in the rich natural environment of Saito City, Miyazaki Prefecture

    • Managed in a low-stress, animal-friendly system

    These meticulous production practices result in a healthier and more refined fat profile.


    ■ What’s the Difference When There’s More Oleic Acid?

    Beef with high oleic acid content has a lower melting point, which means it melts effortlessly in your mouth. But it’s not just about tenderness.

    • Lighter aftertaste with no greasy heaviness

    • Easier on the stomach

    • Well-balanced with lean meat, allowing for versatile cooking

    • Flavor holds up even after cooling

    In short, high-oleic Wagyu like Arita offers more than indulgence—it delivers a kind of deliciousness you can enjoy every day.


    ■ Delicious and Healthy Can Coexist

    For a long time, Wagyu was considered a luxury food—and its fat was mistakenly viewed as unhealthy.

    But Arita Wagyu, with its high oleic acid and cleaner fat, breaks that stereotype. It’s redefining Wagyu as a meat that’s not only delicious but also considerate of well-being.

    “I feel good serving this to my kids.”

    “It’s the kind of Wagyu I can enjoy every day.”

    “Great for both high-end restaurants and everyday menus.”

    These are just a few of the real voices coming from chefs and families alike.


    ■ Conclusion: It's Time to Choose Wagyu Based on Fat Quality—Not Just Marbling Grade

    The future of Wagyu selection is not only about “A5” or marbling—it’s about oleic acid content and fat quality.

    If you're looking to serve beef that balances flavor and health, Arita Wagyu with high oleic acid is your ideal match.

    “Gentle on the body. Delicious to the last bite.”

    That’s the promise of beef backed not only by craftsmanship, but by science.

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