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: Physiology
All of the following increases calcium absorption from the gut except 
Select and explain. 
A. Phytates, B. Vitamin D, C. Alkaline pH in the gut, D. Protein in diet
C: Alkaline pH in the gut
Answer: C: Alkaline pH in the gut 
Explanation: Ans: C. Alkaline pH in gut Factors increasing Calcium AbsorptionFactors decreasing Calcium AbsorptionVitamin DdegParathormonedegAcidic pHdegLactosedegAmino acidsdeg (protein rich diet)OxalatesdegPhytatesdegAlkaline pHdegHigh phosphatedegHigh Mg2+CaffeinesdegDietary fibersdeg