Choline supplementation has been investigated for hepatic steatosis; what has been observed?

• A. It has been proven to prevent PN-associated liver disease
• B. It has no effect on steatosis
• C. Steatosis resolves with supplementation, but more studies are needed for PN-associated liver disease
• D. Choline supplementation worsens liver disease

Answer: (C)

Choline serves as a lipotropic nutrient essential for making phosphatidylcholine, a key component needed to form VLDL particles that export triglycerides from the liver. When choline is deficient, triglycerides accumulate in hepatocytes, leading to hepatic steatosis; providing choline can reverse this fat buildup in those with deficiency, explaining why steatosis can resolve with supplementation. However PN-associated liver disease is influenced by many factors beyond choline status, and while some data suggest potential benefits, there isn’t conclusive evidence that choline prevents PN-associated liver disease overall. So the observed effect is that steatosis may improve with supplementation, but more research is needed to determine its impact on PN-associated liver disease.