New vitamin D recommendations for older men and women

May 10, 2010

The International Osteoporosis Foundation (IOF) has released a new position statement on Vitamin D for older adults which makes important recommendations for vitamin D nutrition from an evidence-based perspective.

Vitamin D is important for bone and muscle development, function and preservation. For this reason it is a vital component in the maintenance of bone strength and in the prevention of falls and osteoporotic fractures.

The objective of this statement, published in the leading bone journal, Osteoporosis International (OI DOI 10 1007/s00198-010-1285-3), was to use and examine all available evidence to support new recommendations for optimal vitamin D status.

The best available clinical indicator of vitamin D status is serum 25OHD and vitamin D intake and effective sun exposure are the major determinants of this level. Serum 25OHD levels decline with ageing but the response to supplementation is not affected by age or by usual calcium .

Preventing vitamin D deficiency has a major impact on falls and osteoporotic fractures. is associated with decreased muscle strength in older men and women and supplementation improves lower limb strength and reduces risk of falling. Vitamin D affects fracture risk through its effect on and on falls risk.

Key recommendations:

  • The estimated average vitamin D requirement of to reach a serum 25OHD level of 75 nmol/l (30ng/ml) is 20 to 25 µg/day (800 to 1000 IU/day).
  • Intakes may need to increase to as much as 50 µg(2000IU) per day in individuals who are obese, have osteoporosis, limited sun exposure (e.g. housebound or institutionalised), or have malabsorption.
  • For high risk individuals it is recommended to measure serum 25OHD levels and treat if deficient.
The lead author of the statement, Professor Bess Dawson-Hughes of Tufts University, US, stated that, "Global vitamin D status shows widespread insufficiency and deficiency. This high prevalence of suboptimal levels raises the possibility that many falls and fractures can be prevented with supplementation. This is a relatively easy public health measure that could have significant positive effects on the incidence of osteoporotic fractures."

Explore further: Low vitamin D levels may be common in otherwise healthy children

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5 / 5 (1) May 10, 2010
Since osteoporosis responds well to these levels of D3, this is finally a recommendation in the right direction (but unlikely to seriously affect the Industrial Medical Complex's income).

The myriad of other biological responses to D3 intake/sun exposure require 2x to 4x higher intake than recommended here to reach, what now appear to be, optimal levels of 25-OHD3 (ca. 50 - 60 ng/ml). However, in that range significant improvement in overall health will be seen.


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