This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Maternal and child care, Subject name: Social & Preventive Medicine
Compared to cow&;s milk, human milk has 
Select and explain. 
A. More proteins, B. Less carbohydrates, C. More iron, D. Less of vitamins
C: More iron
Answer: C: More iron 
Explanation: Cow&;s milk and human milk are dissimilar in many aspects. The differences may be seen as great as the difference between brain and brawn.Protein: Human milk contains low protein, 3times less than cows milk. Human milk contains more cysteine, essential for prematures and less methionine than cows milk. Human milk is viually a living fluidFats: Mothers milk is especially rich in fats, which represent between 30-50 percent of total energy value. Carbohydrates: Human milk contains more lactose than most other milks. It may be especially useful for growing brainsVitamins and Minerals: Human milk is rich in Vitamin D, C, A etcAnother factor which is supposed to be deficient in human milk is iron but again recent work has shown that iron contained in breast milk has a high level of bioavailability.Ref: Park; 23rd ed; Pg 540