Health: Studies Cast Doubt on Use of Calcium

Society | April 29, 2005, Friday // 00:00

Recent studies show that people should consider other strategies for secondary fracture prevention, including pharmacological intervention with drugs such as bisphosphonates that help maintain bone density and reduce fractures.

The findings were reported in The Lancet and follow a major 5Ѕ year trial involving almost 5,300 people aged 70 and over who had suffered a fracture in the last 10 years. From the age of 50, one in three women and one in twelve men will have an osteoporotic fracture, such as those of the hip, wrist or spine. Those who have already suffered a fracture of this kind are at increased risk of suffering a further fracture.

Vitamin D and calcium, alone or in combination, are often recommended for prevention of osteoporotic fractures.

Up until now it has not been clear if supplements of calcium and/or vitamin D are effective in preventing a further fracture among those who have already had one. However, research led by the University of Aberdeen suggests this is not the case.

The trial mainly examined the prevention of low-trauma fractures, but other outcomes including health status, mortality, falls and adverse events were also sought. Participants were followed up for between 24 and 62 months. Six hundred and ninety-eight participants (13%) suffered a further low-trauma fracture, including 183 people with hip fractures.

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