Answer:
Yes, I think she is at risk.
Step-by-step explanation:
Since your body needs Calcium and Vitamin D to not be at risk for osteoporosis since she is lacking her Calcium she may be in risk for osteoporosis But check in on her to see if she gets a regular amount of Vitamin D, If she says No, then she is at high risk if she does say yes then she may be at a more little risk than if she doesn't get Vitamin D.