For your age, there is not much need of
calcium supplements unless there is a serious deficiency of calcium in the body..
If you want to take, there are lots of options.. You can start with Calcium Citrate or Calcium Orotate preparation once daily for 1 to 2 months..
Also start with
Vitamin d supplement 60k weekly for 8 weeks..
Next Steps
Also start with exercises especially back strengthening exercises for strengthening the lower back muscles..
Health Tips
Avoid heavy work, avoid sitting down, avoid Indian toilet..