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OPTIMUM NUTRITION has always been about helping people unlock their potential. No matter your goal or level, if you’re putting it in, we’ll help you get more out. As the World’s #1 sports nutrition brand, we’ve been delivering trusted performance nutrition for over 35 years

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Meet the Elite Athletes Who Choose Optimum

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Hugo Keenan

Hugo Keenan rose through Leinster to become a key figure for Ireland, known for consistency and fearless play. Central to Ireland’s Grand Slam triumphs and World Cup campaigns, he has earned his place among the world’s top full-backs.

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Emma Duggan

Emma Duggan has already led Meath to back-to-back All-Ireland titles, showcasing vision, pace, and composure under pressure. Still early in her career, she is recognised as one of Gaelic football’s brightest young stars.

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Insiders - Protein Professor Debuking top 3 protein myths
Expert Advice

Debunking the Top 3 Protein Myths

Takeaway points Eating more protein does not harm healthy kidneys. Protein strengthens bones rather than weakening them. Higher protein intakes do not shorten lifespan and may support healthy...

Recovery Trends: From Ice Baths to Whey Protein – What Really Works?
Expert Advice

Recovery Trends: From Ice Baths to Whey Protein – What Really Works?

A conversation between Dr. Crionna Tobin, Head of Nutrition at Optimum Nutrition, and Jeet Selal, Fitness Influencer and Coach Takeaway Tips: Nutrition first: Prioritise daily protein intake—...

Nutrition Strategies for Elite Swimmers During the Training Phase
Expert Advice

Nutrition Strategies for Elite Swimmers During the Training Phase

Key Takeaways Carbohydrates drive performance: Periodise intake based on training load (8–10 g/kg on heavy days). Protein supports repair: Aim for 20–30 g every 3–4 hours, plus casein before be...