Bone health

Pregnancy

During pregnancy calcium and Vitamin D support the mineralisation of the developing baby’s bones and the continued skeletal growth in the infant.

Childhood

  • The vast majority of adult bone mass is attained before the age of 14. “Jones paper”.
  • 95% of the adult skeleton is formed by the end of adolescence.
  • Childhood and adolescence are times of rapid growth and critical periods for building bone mass.

Adult 20-30

Peak bone mass generally occurs between the age 20 – 301.

30’s

From our mid-30’s, bone loss slowly begins (This is the most important point that we want to get across).

40’s

All through your life, your body is continually removing old bone and replacing it with fresh bone. This process is called remodelling. After age 40, less bone is replaced. (healthy bones at every age paper).

50’s

  • From Menopause, bone loss occurs at a much quicker rate due to the rapid decline in oestrogen levels. If a woman’s peak bone mass before menopause is less than ideal, any bone loss that occurs during menopause may result in osteoporosis. (OA website & Better Health Channel).
  • For about the first 5 years after menopause, women lose bone at the rate of about 2%–3% per year and then continue to lose about 1% of bone mass per year to the end of life. (MJA Calcium and bone health: position statement).
  • Men start to lose bone at about the age of 50 years, but more slowly than women. (MJA Calcium and bone health: position statement).
  • 66% of people over 50 have Osteoporosis or poor bone health. (OA – Osteoporosis Costing all Australians – a new burden of disease analysis).

60’s

  • The rate of bone loss in men and women over the age of 60 years is about the same, and calcium absorption decreases with age.
  • (MJA Calcium and bone health: position statement).