Featured Research

from universities, journals, and other organizations

Calcium And Vitamin D May Not Be The Only Protection Against Bone Loss

Date:
December 4, 2008
Source:
The Endocrine Society
Summary:
Diets that are high in protein and cereal grains produce an excess of acid in the body which may increase calcium excretion and weaken bones, according to a new study. The study found that increasing the alkali content of the diet, with a pill or through a diet rich in fruits and vegetables has the opposite effect and strengthens skeletal health.

Diets that are high in protein and cereal grains produce an excess of acid in the body which may increase calcium excretion and weaken bones, according to a new study.

The study found that increasing the alkali content of the diet, with a pill or through a diet rich in fruits and vegetables has the opposite effect and strengthens skeletal health.

"Heredity, diet, and other lifestyle factors contribute to the problem of bone loss and fractures," said Bess Dawson-Hughes, M.D., of Tufts University in Boston, Mass. and lead author of the study. "When it comes to dietary concerns regarding bone health, calcium and vitamin D have received the most attention, but there is increasing evidence that the acid/base balance of the diet is also important."

Average older adults consume diets that, when metabolized, add acid to the body, said Dr. Dawson-Hughes. With aging, we become less able to excrete the acid. One way the body may counteract the acid from our diets is through bone resorption, a process by which bones are broken down to release minerals such as calcium, phosphates, and alkaline (basic) salts into the blood. Unfortunately, increased bone resorption leads to declines in bone mass and increases in fracture risk.

"When fruits and vegetables are metabolized they add bicarbonate, an alkaline compound, to the body," said Dr. Dawson Hughes. "Our study found that bicarbonate had a favorable effect on bone resorption and calcium excretion. This suggests that increasing the alkali content of the diet may attenuate bone loss in healthy older adults."

In this study, 171 men and women aged 50 and older were randomized to receive placebo or doses of either: potassium bicarbonate, sodium bicarbonate, or potassium chloride for three months. Researchers found that subjects taking bicarbonate had significant reductions in calcium excretion, signaling a decrease in bone resorption.

"In this study, we demonstrated that adding alkali in pill form reduced bone resorption and reduced the losses of calcium in the urine over a three month period," said Dr. Dawson-Hughes. "This intervention warrants further investigation as a safe and well tolerated supplement to reduce bone loss and fracture risk in older men and women."

Other researchers working on the study include Susan Harris, Nancy Palermo, Helen Rasmussen, and Gerard Dallal of Tufts University in Boston, Mass., and Carmen Castaneda-Sceppa of Northeastern University in Boston, Mass.



Story Source:

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


Journal Reference:

  1. Treatment with Potassium Bicarbonate Lowers Calcium Excretion and Bone Resorption in Older Men and Women. Journal of Clinical Endocrinology & Metabolism, January 2009

Cite This Page:

The Endocrine Society. "Calcium And Vitamin D May Not Be The Only Protection Against Bone Loss." ScienceDaily. ScienceDaily, 4 December 2008. <www.sciencedaily.com/releases/2008/12/081203084314.htm>.
The Endocrine Society. (2008, December 4). Calcium And Vitamin D May Not Be The Only Protection Against Bone Loss. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2008/12/081203084314.htm
The Endocrine Society. "Calcium And Vitamin D May Not Be The Only Protection Against Bone Loss." ScienceDaily. www.sciencedaily.com/releases/2008/12/081203084314.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Positive Ebola News: Outbreak 'Contained' In Nigeria

Some Positive Ebola News: Outbreak 'Contained' In Nigeria

Newsy (Sep. 30, 2014) The CDC says a new case of Ebola has not been reported in Nigeria for more than 21 days, leading to hopes the outbreak might be nearing its end. Video provided by Newsy
Powered by NewsLook.com
UN Ebola Mission Head: Immediate Action Is Crucial

UN Ebola Mission Head: Immediate Action Is Crucial

AFP (Sep. 30, 2014) The newly appointed head of the United Nations Mission for Ebola Emergency Response (UNMEER), Anthony Banbury, outlines operations to tackle the virus. Duration: 00:39 Video provided by AFP
Powered by NewsLook.com
CDC Confirms First Case of Ebola in US

CDC Confirms First Case of Ebola in US

AP (Sep. 30, 2014) The CDC has confirmed the first diagnosed case of Ebola in the United States. The patient is being treated at a Dallas hospital after traveling earlier this month from Liberia. (Sept. 30) Video provided by AP
Powered by NewsLook.com
New Breast Cancer Drug Extends Lives In Clinical Trial

New Breast Cancer Drug Extends Lives In Clinical Trial

Newsy (Sep. 30, 2014) In a clinical trial, breast cancer patients lived an average of 15 months longer when they received new drug Perjeta along with Herceptin. 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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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