SOD1 and mastitis: Indeed, it is one of the most common metallic micronutrients able to ensure the structural and catalytic properties of some antioxidant enzymes (e.g., cytochrome-c oxidase, SOD), also having indirect antimicrobial properties associated with the oxidative destruction exerted on bacterial lipids, proteins, and DNA; this dual ability can be exploited to improve udder health management and prevent mastitis in dairy cows [37,38].