Standard term infant formulas contain lactose at what proportion?

• A. 100% lactose
• B. 40-50% lactose
• C. 0% lactose
• D. 60-70% lactose

Answer: (A)

Standard term infant formulas are designed with lactose as the carbohydrate source. In these formulas, lactose is used as the sole carbohydrate, mirroring the carbohydrate profile of typical term breast milk. Because of this, the entire carbohydrate content is lactose, making its proportion effectively 100%. If a formula is lactose-free or uses other carbohydrates like glucose polymers or corn syrup solids, it would be categorized differently (not a standard term formula). This is why lactose-free options exist for specific conditions, but for standard term formulas, lactose is the principal and essentially exclusive carbohydrate.