ACE Health Coach Certification Practice Test 2026 - Free Health Coach Certification Practice Questions and Study Guide

Chromium plays a significant role in glucose metabolism and is known to enhance the effectiveness of insulin. It functions as a cofactor for the insulin receptor, which means it helps insulin bind to its receptor on cells, allowing for better uptake of glucose from the bloodstream into the cells. This interaction is crucial for maintaining normal blood sugar levels and supporting overall metabolic health.

Magnesium is also important for metabolic processes and can influence insulin sensitivity; however, its primary role is not directly tied to enhancing insulin's effectiveness in the same way Chromium does. Iron is essential for various bodily functions, particularly in oxygen transport and energy production but does not have a direct role in glucose metabolism in relation to insulin sensitivity. Selenium is vital for antioxidant defense and thyroid function but is not primarily associated with glucose metabolism.

Therefore, Chromium's unique involvement in insulin action and glucose uptake makes it the correct choice in this context.