Featured Research

from universities, journals, and other organizations

Increasing daily calcium will not reduce the risk of fractures in later life, study suggests

Date:
May 25, 2011
Source:
BMJ-British Medical Journal
Summary:
While moderate amounts of calcium (around 700 mg a day) are vital for maintaining healthy bones, there is no need to start increasing calcium intake in order to reduce the risk of fractures or osteoporosis in later life, according to new research.

While moderate amounts of calcium (around 700 mg a day) are vital for maintaining healthy bones, there is no need to start increasing calcium intake in order to reduce the risk of fractures or osteoporosis in later life, finds a paper published on the British Medical Journal website on May 24.

As people age, their bones lose calcium and they are more at risk of fractures and osteoporosis -- this is especially the case for women. As well as causing individual suffering, fractures are a huge drain on health services.

With aging populations, this burden will increase in the coming years and therefore preventing them is a major public health issue, say the authors, led by Dr Eva Warensjφ from Uppsala University in Sweden.

The importance of increasing calcium intake to compensate for the loss of calcium has been debated for a long time and there is still no clear advice. This is reflected by the wide range of daily calcium recommendations for the over fifties -- in the UK it is currently 700 mg; it is 800 mg in Scandinavia and 1,200 mg in the US.

In order to investigate the links between long-term dietary calcium intake and the risk of fractures, the authors reviewed data from a large population study of Swedish women carried out in 1987.

Over 61,433 women (born between 1914 and 1948) took part in the Swedish Mammography Study and of these 5,022 participated in a smaller sub-research group. All participants were followed up for 19 years.

During the follow-up, 14,738 (24%) women had a first fracture and, of these, 3,871 (6%) had a first hip fracture. Twenty percent of the sub-group had osteoporosis.

The researchers used a series of questionnaires to gain in-depth knowledge of the participants' changing diet and in particular their calcium intake and use of supplements and multivitamins.

The women also provided information about their menopausal status, whether or not they used post-menopausal oestrogen therapy, their weight, height, smoking habits, how much physical activity they did and their educational attainment.

The results show that women had the lowest risk of having a fracture when they consumed around 750 mg a day of calcium. However, the fracture risk in women who started to increase their calcium intake over time did not decrease.

There is some evidence that high intake of calcium may actually increase the rate of hip fractures, though the authors stress that this result needs to be interpreted with caution.

The authors conclude that while low levels of calcium intake (less than 700 mg per day) increase the risk of fractures and osteoporosis, there is no need to start increasing calcium intake above the amount. Increases did not further reduce the fracture and osteoporosis risk.


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. E. Warensjo, L. Byberg, H. Melhus, R. Gedeborg, H. Mallmin, A. Wolk, K. Michaelsson. Dietary calcium intake and risk of fracture and osteoporosis: prospective longitudinal cohort study. BMJ, 2011; 342 (may24 1): d1473 DOI: 10.1136/bmj.d1473

Cite This Page:

BMJ-British Medical Journal. "Increasing daily calcium will not reduce the risk of fractures in later life, study suggests." ScienceDaily. ScienceDaily, 25 May 2011. <www.sciencedaily.com/releases/2011/05/110524191649.htm>.
BMJ-British Medical Journal. (2011, May 25). Increasing daily calcium will not reduce the risk of fractures in later life, study suggests. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2011/05/110524191649.htm
BMJ-British Medical Journal. "Increasing daily calcium will not reduce the risk of fractures in later life, study suggests." ScienceDaily. www.sciencedaily.com/releases/2011/05/110524191649.htm (accessed September 16, 2014).

Share This



More Health & Medicine News

Tuesday, September 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Ministers and Experts Meet to Discuss Ebola Reponse

EU Ministers and Experts Meet to Discuss Ebola Reponse

AFP (Sep. 15, 2014) — The European Commission met on Monday to coordinate aid that the EU can offer to African countries affected by the Ebola outbreak. Duration: 00:58 Video provided by AFP
Powered by NewsLook.com
Despite The Risks, Antibiotics Still Overprescribed For Kids

Despite The Risks, Antibiotics Still Overprescribed For Kids

Newsy (Sep. 15, 2014) — A new study finds children are prescribed antibiotics twice as often as is necessary. Video provided by Newsy
Powered by NewsLook.com
FDA Eyes Skin Shocks Used at Mass. School

FDA Eyes Skin Shocks Used at Mass. School

AP (Sep. 15, 2014) — The FDA is considering whether to ban devices used by the Judge Rotenberg Educational Center in Canton, Massachusetts, the only place in the country known to use electrical skin shocks as aversive conditioning for aggressive patients. (Sept. 15) Video provided by AP
Powered by NewsLook.com
Respiratory Virus Spreads To Northeast, Now In 21 States

Respiratory Virus Spreads To Northeast, Now In 21 States

Newsy (Sep. 14, 2014) — The respiratory virus Enterovirus D68, which targets children, has spread from the Midwest to 21 states. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins