Dried Distillers Grain with Solubles (DDGS) is a co-product that can be used in feed to reduce costs, and can come from corn or wheat processing. Corn DDGS is higher in fat and wheat DDGS is higher in crude protein. The nutrients from DDGS can vary with the source, as the parent grain’s original nutrients can vary and the drying process can reduce nutrients in the final DDGS. A lysine to crude protein ratio of 2.8% or greater indicates a good quality DDGS product.  DDGS has increased digestibility of phosphorous compared to the parent grain, so substitution of inorganic phosphorous may not be needed in the diet. Producers should always check for mycotoxins before including DDGS into their diet. Up to 25% corn DDGS has been fed to grow-finish pigs with no reduction in growth performance, but dressing percent may be lowered. Research is still lacking on the nutrients and feeding recommendations for wheat DDGS, although preliminary studies have included up to 15% in diets with maintained performance. When choosing to include DDGS in feed, having a reliable and consistent quality source is important.