Optimum Nutrition is a globally recognized brand specializing in sports nutrition products. Founded in 1986 and headquartered in Illinois, USA, the company is a subsidiary of Glanbia, a leading international cheese and nutritional ingredients group. Optimum Nutrition is particularly known for its high-quality whey protein, particularly Gold Standard 100% Whey, which is one of the best-selling protein powders worldwide.

Optimum Nutrition offers a wide range of products designed to support athletic performance, muscle building, recovery, and overall health. Their product line includes protein powders, pre-workout formulas, amino acids, and various other dietary supplements that cater to athletes and fitness enthusiasts at all levels. In addition to whey protein, they provide casein protein, plant-based protein, and ready-to-drink protein shakes.

The brand is recognized for its commitment to quality, ensuring that all of its products undergo rigorous testing for purity and effectiveness. Optimum Nutrition products are also widely available and are used by both professional athletes and everyday fitness enthusiasts to enhance their training and meet their nutritional needs.