Featured Research

from universities, journals, and other organizations

Excessive salt consumption appears to be bad for your bones

Date:
June 17, 2013
Source:
Endocrine Society
Summary:
A high-salt diet raises a woman’s risk of breaking a bone after menopause, no matter what her bone density is, according to a new study.

A high-salt diet raises a woman's risk of breaking a bone after menopause, no matter what her bone density is, according to a new study that was presented Saturday at The Endocrine Society's 95th Annual Meeting in San Francisco.

The Japanese study found that older women who consumed the highest amount of sodium had more than four times the risk of a nonvertebral fracture, or fracture at any site other than the spine. That finding held true even after the researchers made adjustments for many other characteristics that could affect fracture risk, said the study's lead author, Kiyoko Nawata, PhD.

"Excessive sodium intake appears to be a risk factor for bone fragility. It is therefore important to consider excessive sodium intake in dietary therapy for osteoporosis," said Nawata, a professor of health and nutrition at the University of Shimane in Matsue, Japan.

A nonvertebral fracture, particularly of the hip, can cause substantial disability and even death, many studies have found.

Past research shows a connection between excess sodium intake and increased bone breakdown and decreased bone mineral density. Nawata and her colleagues conducted the study to learn whether too much sodium also is related to fracture risk. The researchers studied 213 postmenopausal women, with an average age of 63, who had undergone osteoporosis screening.

The screening included bone density scanning, a food questionnaire and bloodwork to test markers of bone metabolism and rule out medical conditions that can raise fracture risk. In addition, a physician determined the presence or absence of an existing nonvertebral fracture. The women also had motor function tests of their balance, to determine their fall risk, and a test of handgrip strength. Low grip strength is a risk factor for osteoporosis-related fracture.

For all women, the average daily sodium intake was 5,211 milligrams (mg), the authors reported. The group with the highest sodium intake consumed an average of 7,561 mg per day, the sodium equivalent of more than seven McDonald's double cheeseburgers, according to Nawata. That group was 4.1 times likelier to have an existing nonvertebral fracture, compared with the groups who had lower sodium intakes. The increased risk was independent of the other risk factors assessed, including the woman's age, bone mineral density, body mass index, calcium and vitamin D intake, and blood level of vitamin D, as well as balance and muscle strength.

The groups with less sodium intake did not have an increased risk of fracture, Nawata said.

Japanese consume more sodium on average than Americans -- 3,972 mg versus about 3,400 mg per day -- said study co-investigator Mika Yamauchi, MD, associate professor of internal medicine at Shimane University Faculty of Medicine in Izumo.

Americans, however, consume far more sodium than the daily recommended intake of 2,300 mg, which equals less than 1 teaspoon of table salt. The 2010 Dietary Guidelines for Americans further recommend that people 51 and older consume no more than 1,500 mg of sodium per day. However, the Institute of Medicine released a report in May stating that "evidence on direct health outcomes does not support recommendations to lower sodium intake … to, or even below, 1,500 mg per day."


Story Source:

The above story is based on materials provided by Endocrine Society. Note: Materials may be edited for content and length.


Cite This Page:

Endocrine Society. "Excessive salt consumption appears to be bad for your bones." ScienceDaily. ScienceDaily, 17 June 2013. <www.sciencedaily.com/releases/2013/06/130617110931.htm>.
Endocrine Society. (2013, June 17). Excessive salt consumption appears to be bad for your bones. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2013/06/130617110931.htm
Endocrine Society. "Excessive salt consumption appears to be bad for your bones." ScienceDaily. www.sciencedaily.com/releases/2013/06/130617110931.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Condemned Man's US Execution Takes Nearly Two Hours

Condemned Man's US Execution Takes Nearly Two Hours

AFP (July 24, 2014) America's death penalty debate raged Thursday after it took nearly two hours for Arizona to execute a prisoner who lost a Supreme Court battle challenging the experimental lethal drug cocktail. Duration: 00:55 Video provided by AFP
Powered by NewsLook.com
China's Ageing Millions Look Forward to Bleak Future

China's Ageing Millions Look Forward to Bleak Future

AFP (July 24, 2014) China's elderly population is expanding so quickly that children struggle to look after them, pushing them to do something unexpected in Chinese society- move their parents into a nursing home. Duration: 02:07 Video provided by AFP
Powered by NewsLook.com
Hundreds in Virginia Turn out for a Free Clinic to Manage Health

Hundreds in Virginia Turn out for a Free Clinic to Manage Health

AFP (July 24, 2014) America may be the world’s richest country, but in terms of healthcare, the World Health Organisation ranks it 37th - prompting hundreds in Virginia to turn out for a free clinic run by “Remote Area Medical”. Duration 02:40 Video provided by AFP
Powered by NewsLook.com
Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. 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