The study's main objective was to investigate the effects of chronic HS on pigs and how they could be mitigated by dietary treatments that included antioxidant nutrients such as vitamin C, vitamin E, zinc, and selenium. The animals were divided into four treatment groups (three pens per treatment) based on their live weight. Three dietary treatment groups will be placed in the high-temperature room: basal feed (HC), elevated 1 (HE1), and elevated 2 (HE2) (HE2) Two additional dietary treatments (E1 and E2) were developed by supplementing with increased levels of vitamin E, vitamin C, Zn, and Se (organic source). We can conclude from this study that antioxidants help pigs maintain their temperature better when compared to pigs in heat stress who do not receive a feed supplement. Furthermore, creatinine levels were surprisingly higher than expected, particularly in pigs given double the amount of antioxidants. However, it is important to note that more research and investigation are required to better understand the benefits of antioxidants in overcoming heat stress.