Optimum Nutrition UK

Founded in 1986, Optimum Nutrition (ON) is a globally recognized sports nutrition brand owned by Glanbia. It is most famous for its flagship product, Gold Standard 100% Whey, the world’s best-selling whey protein powder.

Catering to elite athletes and everyday fitness enthusiasts, ON offers a comprehensive range of premium supplements, including pre-workouts, creatine, and amino acids. The brand is celebrated for its strict quality control, producing its own products in-house to ensure exceptional purity and consistency. Optimum Nutrition remains a trusted industry leader dedicated to muscle recovery, strength, and athletic performance.