Vitamin D May Prevent Hip Fractures Better than Calcium
the prevention of hip fractures has focused on calcium intake,
vitamin D may be more important.
Women in a new observational
study who consumed 12.5 micrograms (mcg) or more of vitamin
D daily (from food or supplements)
were 37% less likely to have a hip fracture than those
less than 3.5 mcg daily. By contrast, women with high calcium
intakes (1,200 mg per day or more) were just as likely to
have a hip fracture as those with low intakes (less than 600
daily). Also, higher milk intake did not lower the risk
of hip fracture.
The study included 72,337 postmenopausal women who were followed
for 18 years with periodic dietary assessments.
trials of calcium supplementation have shown that calcium intake
can increase bone mass and decrease fracture
risk in postmenopausal women. However, calcium was often
vitamin D in these trials, clouding the issue of which
nutrient is more important for bone health. Although milk is
source of vitamin D, milk also contains vitamin A, which
can have a detrimental effect on bone.
can improve their vitamin D intake through more frequent consumption
of fatty fish such as
sardines or the use of supplements, the authors conclude.
Journal of Clinical Nutrition
Volume 77, page 504