LLL 44-1 Micronutrients in clinical nutrition: Trace elements

Area of Science:

• Biochemistry
• Nutritional Science
• Clinical Medicine

Background:

• Trace elements are crucial for metabolic pathways, antioxidation, and immune function.
• They play an essential role in medical nutrition therapy.
• Understanding their impact is key for patient health.

Purpose of the Study:

• To summarize the clinical significance of essential trace elements.
• To outline optimal analytical techniques for assessing trace element status.
• To provide practical recommendations for trace element provision in clinical nutrition.

Main Methods:

• Review of clinical literature on trace elements.
• Summary of essential trace elements including Copper, Iron, Selenium, Zinc, Iodine, Chromium, Molybdenum, and Manganese.
• Discussion of analytical techniques and nutritional delivery methods.

Main Results:

• Medical nutrition therapy encompasses all essential trace elements.
• Enteral nutrition typically provides trace elements automatically, while parenteral nutrition requires specific prescriptions.
• Isolated deficiencies and increased requirements necessitate regular monitoring.
• Inflammation can significantly lower blood trace element levels, potentially masking deficiencies.

Conclusions:

• The study summarizes clinical manifestations of trace element depletion and deficiency.
• It highlights challenges in assessing trace element status.
• Practical recommendations are made for trace element administration in enteral and parenteral nutrition.