The world's best-selling1 protein powder Gold Standard 100% Whey adds two breakfast-inspired flavors alongside the brand's new AMIN.O. ENERGY tropical-infused flavors "For over 35 years, Optimum ...

If you’ve ever shopped for protein powders, you’ve likely spotted Optimum Nutrition’s Gold Standard whey protein on the shelf — it’s essentially a staple of the nutrition aisle at the grocery store.

We tapped our team's fitness experts and interviewed nutritionists to find the best protein powders—from whey to ...

Optimum Nutrition’s Gold Standard shake is widely available in a huge range of sizes and colours. Protein amount is good though taste might be a little sweet and texture a bit thin for some. Despite ...