I don't know what they're using to enrich the juice so it's hard to say, but
if the calcium wasn't in the product to begin with then it isn't in its
natural form so I question it's validity.
   For anyone who likes beans, I know they have lots of vitamins, minerals
and so for anyone looking for calcium and protein any kind of bean would be
a great source and seeds as well. if the birds can live on seeds then so can
we. They're loaded with all kinds of nutrients, including calcium. Sue