The waste products derived from the olive oil supply chain are a valuable source: the pitted olive pomace from the olive millings contain a high amount of oleic acid, a polyphenol profile similar to olive oil and are rich in antioxidants. Scientific evidence reports that including pitted olive pomace in the diet of ruminant improve milk and meat quality. This positive effect is achieved by a higher content of unsaturated fatty acids (oleic) and a polyphenol profile that increase their “shelf-life” and improve the health impact for humans through the diet.