Which nutrient enhances the body’s ability to fight off chronic diseases besides vitamins E and B6?

Zinc is recognized for its critical role in enhancing the immune system, which is essential in combating chronic diseases. It functions as a cofactor for numerous enzymes that facilitate various biological processes, including those involved in immune function, cell division, and DNA synthesis. Adequate zinc levels are linked to improved immune responses, which can reduce the severity and duration of infections and inflammatory conditions. Furthermore, zinc has antioxidant properties that help protect cells from damage caused by oxidative stress, thereby contributing to overall health and resilience against chronic diseases.

In contrast, while calcium supports bone health and other physiological functions, it does not directly influence immune function in the context of disease prevention. Vitamin D plays a significant role in immune modulation and may also assist in reducing the risk of chronic diseases, but in this question, zinc specifically is highlighted for its enhanced efficacy in immune response. Sodium primarily functions in fluid balance and electrolyte regulation, and does not have a direct role in chronic disease prevention. Thus, zinc stands out as the nutrient that directly impacts the body's ability to fend off chronic diseases alongside vitamins E and B6.