As the ethanol and renewable fuel industries grow, the availability of distillers grains and other co-products continues to increase. These co-products are valuable feedstuffs for ruminants because of their high protein content and also their high fiber content. However, as more acres are dedicated to corn production, less pasture will be available for grazing livestock and less corn may be available for use as feed. As such,supplementing pasture-fed cattle with distillers grains may be an option for some producers to utilize. Therefore, the objective of this research was to evaluate pasture-finishing steers with supplementation of a distillers co-product.