Best Calcium For Osteoporosis I Have Osteoporosis. The Doctor Recommends I Eat 2 Oranges/day To Supplement The Calcium Tablet. Why?

I have osteoporosis. The doctor recommends I eat 2 oranges/day to supplement the calcium tablet. Why? - best calcium for osteoporosis

I can not get a response I can understand that, but there is some correlation between the citric acid in oranges and either calcium or osteoporosis. Can someone explain this in plain text?