Which mineral is known to be the second most abundant element on earth, aiding in healing and immune system function?

Silicon is recognized as the second most abundant element on Earth after oxygen, comprising a significant part of the Earth's crust. It plays a crucial role in various biological processes, including healing and supporting the immune system. In the human body, silicon contributes to the synthesis of collagen, a protein necessary for the structure of skin, cartilage, and connective tissues. This property makes it essential not only for wound healing but also for maintaining the health of the immune system, as the integrity of tissues and proper immune responses are interlinked.

While other minerals like iron are vital for health—particularly in oxygen transport and red blood cell production—silicon’s abundance and specific roles in connective tissue health and immune function make it distinctive in these aspects. Sodium is important for fluid balance and nerve function, while vanadium has less established roles in human nutrition. Thus, silicon's unique contributions to healing and immunity help clarify its significance in this context.