Optimum Nutrition Whey Protein: Compare UK Prices

Is Optimum Nutrition a good brand?

Optimum Nutrition is the right choice when certified-clean whey protein matters more than rock-bottom price. Gold Standard 100% Whey is Informed Choice certified, with England Rugby and Elite Series variants additionally Informed Sport registered, useful if you compete in tested sport. The range goes well beyond the flagship whey: Gold Standard Whey Isolate, Gold Standard Plant for vegans, Gold Standard Casein for a slow overnight protein, and Serious Mass for bulking. On Gold Standard Whey the larger 4.54kg tub almost always works out cheaper per 25g of protein than the 2.27kg, so sizing up is the simplest saving. WheyWise tracks 17 Optimum Nutrition products across 5 categories. The cheapest right now is £0.84 per 25g of protein on Gold Standard 100% Whey 300g Strawberry 4.54kg, ranging up to £3.12 across 6 UK retailers. Third-party retailers like Amazon and Holland and Barrett regularly undercut Optimum Nutrition's own site, so sort the table below to find the cheapest for the exact product and size you want.