Which of the following is not typically considered a modular product component?

• A. Safflower oil
• B. Protein
• C. Fiber
• D. Vitamin C

Answer: (D)

Modular product components are the customizable macronutrient and GI-support pieces added to a parenteral nutrition formula to tailor energy and nutrient delivery. Safflower oil functions as a fat module, providing lipids to meet fat calories. Protein is a modular component used to supply amino acids for protein needs. Fiber is another modular component used to influence GI function and stool characteristics. Vitamin C, however, is a micronutrient delivered through vitamin/mineral premixes rather than a modular macronutrient component. In standard practice, vitamins and trace elements are added separately from the macronutrient modules, not treated as modular components like fat, protein, or fiber.