Which micronutrient assists in the regulation of blood sugar levels?

Chromium plays a significant role in the regulation of blood sugar levels by enhancing the action of insulin, a hormone that is critical for managing glucose metabolism. It is involved in the metabolism of carbohydrates, fats, and proteins, helping the body to utilize insulin more effectively. This interaction is vital as it aids in maintaining appropriate blood glucose levels, which is particularly important for individuals with insulin resistance or type 2 diabetes.

Other micronutrients listed do not have the same direct effect on blood sugar regulation. Iron is primarily essential for oxygen transport in the blood, calcium is important for bone health and muscle function, and potassium plays a role in fluid balance and nerve function. Each of these nutrients serves crucial functions, but their roles do not specifically involve the modulation of blood glucose levels in the way that chromium does.