Zinc, Selenium, and Chromium: Trace Element Functions

This topic explores the essential roles of the trace minerals zinc, selenium, and chromium. Zambian tertiary students in nutrition will learn about zinc's function in immune support, wound healing, and taste perception; selenium's critical role as an antioxidant via selenoproteins; and chromium's involvement in glucose and insulin metabolism. The curriculum emphasizes that while required in minute amounts, deficiencies in these trace elements can have significant health consequences. Students will study dietary sources, with attention to how soil selenium content affects food levels—a relevant consideration for Zambian agriculture. Understanding these trace elements is crucial for comprehensive nutritional assessment, explaining their role in chronic disease prevention (e.g., diabetes with chromium), and supporting overall immune function, making it a key component of advanced nutrition studies for diplomas and degrees.