Which trace element is most likely to improve hepatic encephalopathy?

Which trace element is most likely to improve hepatic encephalopathy?

• A. Selenium
• B. Copper
• C. Zinc
• D. Chromium

Answer: (C)

Lowering circulating ammonia is the main therapeutic goal in hepatic encephalopathy. Zinc helps because it is a critical cofactor for enzymes involved in the urea cycle and ammonia metabolism; in liver disease, zinc deficiency is common and impairs the body's ability to convert ammonia into urea. Supplementing zinc can restore urea-cycle efficiency and reduce intestinal ammonia production, which often improves mental status in HE. The other trace elements listed don’t have a direct, established role in improving hepatic encephalopathy—selenium affects antioxidant defenses, copper balance is more related to disorders like Wilson’s disease, and chromium mainly influences insulin sensitivity. So zinc is the most evidence-based choice for improving HE.

Lowering circulating ammonia is the main therapeutic goal in hepatic encephalopathy. Zinc helps because it is a critical cofactor for enzymes involved in the urea cycle and ammonia metabolism; in liver disease, zinc deficiency is common and impairs the body's ability to convert ammonia into urea. Supplementing zinc can restore urea-cycle efficiency and reduce intestinal ammonia production, which often improves mental status in HE. The other trace elements listed don’t have a direct, established role in improving hepatic encephalopathy—selenium affects antioxidant defenses, copper balance is more related to disorders like Wilson’s disease, and chromium mainly influences insulin sensitivity. So zinc is the most evidence-based choice for improving HE.