Millions take calcium and vitamin D for bone health. But does it work?

Topic: Health

A major review of 69 studies found that taking calcium and vitamin D supplements may not prevent fractures or falls in older adults. The review involved over 153,000 participants from around the world.

Millions of people take calcium and vitamin D supplements to support bone health, especially as they age. But a recent study suggests that these supplements may not be effective in preventing fractures or falls.

Falls are a major concern for older adults. Nearly one in three adults aged 65 and over falls each year, which can lead to serious injuries, chronic pain, loss of independence, and even a move into residential care. Finding ways to prevent falls is an important public health goal.

The study involved reviewing the results of 69 randomized controlled trials involving over 153,000 participants from around the world. These trials compared the effects of taking calcium supplements, vitamin D supplements, or both with either a placebo or no treatment at all. The researchers focused on whether these supplements reduced fractures and falls.

After analyzing the data, the researchers found little to no effect on fracture prevention for people taking calcium or vitamin D supplements alone. When they looked at the combination of both supplements, they still found little to no meaningful effect. This was true even when they accounted for factors such as age, sex, previous fractures, and average calcium intake from food.

The researchers caution that their findings may not apply to everyone, especially people with certain bone disorders or those receiving medication for osteoporosis. However, the results were consistent across multiple subgroup analyses, which strengthens confidence in the overall conclusions.

Why It Matters

This study is important because it challenges a common assumption about how to prevent fractures and falls in older adults. It also highlights the need for more research into effective ways to support bone health as we age.

Key Facts

• A major review of 69 studies found that taking calcium and vitamin D supplements may not prevent fractures or falls in older adults.
• The study involved over 153,000 participants from around the world.
• Falls are a major concern for older adults, with nearly one in three aged 65 and over falling each year.
• The researchers found little to no effect on fracture prevention for people taking calcium or vitamin D supplements alone.
• The study's findings may not apply to everyone, especially those with certain bone disorders or receiving medication for osteoporosis.

Key Terms

Randomized controlled trials

Studies where participants are randomly assigned to different treatment groups to test the effectiveness of a treatment.

Osteoporosis

A condition characterized by weakened bones that can increase the risk of fractures.

Implications

This study is important because it challenges a common assumption about how to prevent fractures and falls in older adults. It also highlights the need for more research into effective ways to support bone health as we age.