Trace minerals are dietary elements that are required by the organism in minute levels. The amount of trace minerals required by beef cattle diets ranges from 0.10 to 50.0 mg/kg dry matter [1]. These essential traces of minerals are all essential for the biochemical activities that take place within the body to ensure healthy growth and maintenance of the body. For instance, copper is required for the proper operation of superoxide dismutase and the elimination of harmful by products from metabolic pathways [2]. The elimination of these harmful by products makes it possible for metabolism to run normally, unhindered by the potentially destructive effects of oxygen free radicals. Zinc, an essential trace mineral for the proper functioning of enzymes, has a role in the regulation of processes such as the generation of nucleic acids, the metabolism of carbohydrates, and the synthesis of proteins; as a result, it provides a solid foundation for the process of development [3]. The immune system is a part of the host's defence against destructive forces, whether they come from outside the body, such as bacteria, viruses, and parasites, or from within the body, such as malignant cells or cells that produce autoantibodies [4]. These destructive forces can come from either the outside or the inside of the body. Innate immunity, also known as the nonspecific immune system, and adaptive immunity, sometimes known as the specific immune system, are the two components that make up this system [5]. In this review study, an attempt was made to review the effects of mineral supplements on Rumen Metabolism, as well as the effects on Immune Function in a variety of animal species.