Zinc is an essential trace element that contributes to numerous aspects of cellular metabolism, including T cell development and function. Studies have shown that zinc deficiency can impair T cell development and lead to a weakened immune response. Supplementing with zinc can help bolster the immune system, enhance T cell proliferation, and improve overall health. It's important to ensure adequate intake of zinc-rich foods such as meat, shellfish, legumes, and nuts or consider supplementation, especially for those at higher risk of deficiency.