1. Have a family history of osteoporosis.
2. Very thin, malnourished.
3. Do not exercise.
4. Seldom in sunlight.
5. Enjoy drinking strong tea, coffee or carbonated drinks.
6. Smoking, alcohol.
7. Bedridden.
8. Suffering from hyperthyroidism, diabetes, cancer and other diseases.
9. Have long-term use of hormones, and other immunosuppressive drugs.
10. Low [...]