This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
When milk is taken before meal which of the following element's absorption is decreased: March 2009 
Select and explain. 
A. Calcium, B. Iron, C. Phosphorous, D. Magnesium
B: Iron
Answer: B: Iron 
Explanation: Ans. B: Iron Milk decreases the absorption of iron into the body. Other factors which decreases the bio-availability of non-haem iron is presence of phytates, oxalates, carbonates, phosphates, eggs, tea and dietary fiber.