What are trace elements mainly responsible for in the body?

Trace elements, also known as trace minerals, play vital roles in various metabolic functions within the body. These elements, required in small amounts, contribute to numerous biochemical processes that are essential for maintaining health and homeostasis. For instance, trace minerals like zinc, copper, selenium, and iron are crucial for the proper functioning of enzymes, which catalyze biochemical reactions, and for maintaining immune system health, antioxidant defense, and other physiological functions.

Specifically, trace elements are integral to processes like carbohydrate metabolism, DNA synthesis, and the transport and utilization of oxygen. Their roles in these functions help support overall metabolic pathways that sustain cellular activity and energy balance. Because of their involvement in these critical processes, the correct answer highlights the primary function of trace elements in supporting metabolic functions in the body.