Nathan Cleary, the captain of the New South Wales State of Origin rugby league team, has put a significant focus on his diet as part of his preparation for the upcoming series decider in Brisbane next week. Cleary’s dietary journey began in 2024 following a series of hamstring injuries that limited his on-field contributions during the previous Origin series, which New South Wales ultimately won at Suncorp Stadium.

After suffering three hamstring strains within a few months, Cleary sought to address his recurring injuries by examining various approaches, emphasizing diet as a key factor in recovery and performance. Initially, he experimented with the carnivore diet, which consists solely of meat and dairy products. However, this approach was short-lived as he eventually adopted a more balanced, sustainable whole-foods diet that has supported him in reaching peak physical condition.

Cleary described his current regimen as one focused on “real food,” built around whole foods and minimizing processed ingredients. He avoids seed oils such as canola and sunflower oil, opting instead for alternatives like butter, ghee (clarified butter), beef tallow, and coconut oil. His protein sources are chosen with sustainability in mind and include grass-fed beef, organic chicken, and wild-caught seafood. Contrary to some athletic nutrition trends favoring lean cuts, Cleary does not shy away from animal fats. Carbohydrate consumption is either limited or derived from organic fruits, vegetables, and honey.

This dietary approach stands in contrast to that of his Penrith Panthers teammate Brian To’o, whose game-day meals reportedly include more processed items such as burgers, hot chips, and multiple Coke Zeros.

Cleary emphasized that his interest in nutrition goes beyond athletic performance; he regards it as an area of personal curiosity and experimentation. He acknowledged the diversity of opinions in the nutrition space, cautioning against adopting extreme positions often promoted on social media. While he has drawn inspiration from figures like Paul Saladino, known for advocating whole-food and carnivore diets, Cleary warns that such approaches can be taken to extremes that might not be suitable for everyone.

As he prepares to lead New South Wales in the next State of Origin match, Cleary’s commitment to a holistic and carefully considered dietary strategy is part of his broader effort to optimize his fitness and contribution to the team.