SiS Powers the British & Irish Lions: Official Nutrition Partner for the 2025 Australia Tour

2nd Aug 2025

Science in Sport (SiS)—the globally recognised leader in performance nutrition—has officially been announced as the Performance Nutrition Partner of the British & Irish Lions for their upcoming 2025 Tour of Australia.

Renowned for their scientifically backed supplements and fuelling strategies, SiS will support the Lions throughout their training, matches, and recovery during this iconic tour. From hydration and endurance to rapid recovery, SiS products are designed to help athletes perform at their peak, and will be trusted by some of the biggest names in world rugby.

Fueling Both Sides: SiS x Wallabies & Lions

This announcement strengthens SiS’s growing presence in elite rugby, building on its existing partnership with Rugby Australia—where it also serves as the official performance nutrition supplier to the Wallabies.

By fuelling both teams on opposite sides of the pitch, SiS further demonstrates its reputation as the go-to performance nutrition brand for top-tier athletes and national programs alike.

Trusted by Champions. Backed by Science.

Used by world-class endurance athletes and professional sporting organisations across the globe, SiS products are developed through rigorous scientific research and proven in the world’s most demanding sporting environments.

Their most recognised product lines include:

The 2025 Lions Tour marks another milestone in SiS’s journey of supporting the highest level of human performance—this time, on the global rugby stage.

Stay tuned as we continue to support the rollout of elite-level fuelling and recovery through our partnership with Science in Sport.