Optimum Nutrition is one of the subsidiaries of Glanbia, a durable food company. The formation of ON was initiated in 1986 by Tony and Michael Castel and for over 30 years they have maintained their own supplement manufacturing program. For all supplements , they emphasize easy availability, premium quality and affordable pricing.
Optimum Nutriton offers everything from protein and carbohydrate supplements, to vitamins and Omega-3s, to protein bars.
