What is the physiological function of chromium?

What is the physiological function of chromium?

• A. Potentiates the action of insulin and has a role in glucose, protein and lipid metabolism
• B. Acts as a primary energy substrate
• C. Stores iron
• D. Regulates calcium absorption

Answer: (A)

Chromium’s main physiological role is as an insulin cofactor that enhances insulin action, helping cells respond to insulin and take up and utilize glucose. By improving insulin signaling, chromium supports pathways that use glucose for energy and also influences the anabolic processes driven by insulin, including protein and lipid synthesis. This ties chromium directly to glucose metabolism and the broader macronutrient metabolism that insulin coordinates. It’s not a primary energy substrate itself, so it doesn’t provide energy like glucose or fatty acids. It doesn’t store iron, which is handled by ferritin and other iron-binding proteins. It also doesn’t regulate calcium absorption, a function more associated with vitamin D and parathyroid hormone. So the description of chromium as potentiating insulin action and participating in glucose, protein, and lipid metabolism best fits its physiological role.

Chromium’s main physiological role is as an insulin cofactor that enhances insulin action, helping cells respond to insulin and take up and utilize glucose. By improving insulin signaling, chromium supports pathways that use glucose for energy and also influences the anabolic processes driven by insulin, including protein and lipid synthesis. This ties chromium directly to glucose metabolism and the broader macronutrient metabolism that insulin coordinates.

It’s not a primary energy substrate itself, so it doesn’t provide energy like glucose or fatty acids. It doesn’t store iron, which is handled by ferritin and other iron-binding proteins. It also doesn’t regulate calcium absorption, a function more associated with vitamin D and parathyroid hormone. So the description of chromium as potentiating insulin action and participating in glucose, protein, and lipid metabolism best fits its physiological role.