Subject: Drinking Coca-cola affects the calcium intake in the human/mammalian body?

I was told by my father the other day that drinking Coke will reduce the 
calcium intake in my body, rendering the effects of drinking milk daily 
useless. Is this true? If so, why? Does it only affect human bodies, or 
will it affect plants and other animals(other than mammalians) as well? Is 
it possible to do an experiment to test this? Do you have any ideas on how 
to conduct this experiment? Please help me!!

Re: Drinking Coca-cola affects the calcium intake in the human/mammalian body?