Which statement best describes fat allowance in PN for a stable infant?

• A. Fat should provide more than 50% of kcals
• B. Fat should provide 30-50% of kcals
• C. Fat should provide less than 30% of kcals
• D. Fat should be avoided entirely

Answer: (B)

In parenteral nutrition for a stable infant, fats serve as a dense energy source and provide essential fatty acids needed for growth and development. Providing fat to supply about 30–50% of total calories ensures the infant gets enough essential fatty acids while meeting energy needs without overwhelming the liver or raising triglycerides. Too much fat (exceeding about half of calories) can increase the risk of lipid overload, hypertriglyceridemia, and cholestasis; too little fat (less than about 30%) risks essential fatty acid deficiency and inadequate energy supply; fats should not be avoided entirely because they are essential for growth.