Mark Zuckerberg feeds his cows macadamia nuts and beer to create the ‘highest-quality beef in the world’ on his $300 million estate in Hawaii

Mark Zuckerberg has expanded his portfolio beyond Meta's $1.5 trillion valuation into premium cattle farming on his Ko'olau Ranch, a $300 million property on Kauai's Hawaiian island acquired incrementally beginning in 2014. The cattle operation, initiated around 2024, represents Zuckerberg's personal pursuit to develop what he describes as "the highest-quality beef in the world," with genetics and nutrition engineering at the core of the project's methodology.

The ranch spans at least 2,300 acres and functions as a comprehensive private estate encompassing two mansions, multiple guest houses, recreational facilities including a gym and tennis court, and an underground shelter approximately the size of a basketball court. A portion of the acreage is dedicated to growing macadamia trees, which provide a key nutritional component for the cattle diet. Zuckerberg feeds his wagyu and angus cattle roasted macadamia nuts—a nutrient-dense food that accelerates weight gain and body mass development. To further stimulate appetite, he supplements the diet with beer he brews on-site, allowing cattle to choose between room-temperature water and chilled beer. Individual animals consume between 5,000 and 10,000 pounds of food annually under this regimen.

Zuckerberg emphasized during a recent appearance on the "Idea Generation" podcast that this beef production initiative is not a commercial enterprise. "I'm not selling it," he stated, underscoring that the project reflects personal interest in cattle genetics rather than business expansion. His approach mirrors the intensity he applies to technology product development, focusing on optimization through scientific breeding and specialized feeding protocols. The Ko'olau Ranch operation positions Zuckerberg among a cohort of billionaires acquiring large Hawaiian compounds, including technology executives Marc Benioff and Peter Thiel.