HOME >> MEDICINE >> NEWS
Vitamin D status appears more important than high calcium intake for maintaining calcium metabolism

Calcium intake levels of more than 800 mg/day may be unnecessary for maintaining calcium metabolism if vitamin D status is adequate, according to a study in the November 9 issue of JAMA.

The importance of adequate vitamin D status for optimum bone health has received increased recognition in recent years, with higher recommended intake levels being proposed by some investigators, according to background information in the article. The ideal intake is not known, and different criteria have been proposed for estimating population requirements. Serum 25-hydroxyvitamin D has been the generally accepted indicator of vitamin D status, but no universal consensus has been reached regarding which serum values constitute sufficiency. An inverse relationship between serum 25-hydroxyvitamin D and serum parathyroid hormone (PTH) is well established. Parathyroid hormone is a major hormone maintaining normal serum concentrations of calcium and phosphate and is itself regulated through levels of calcitriol and serum calcium. An insufficiency of vitamin D or calcium is generally associated with an increase in PTH.

Laufey Steingrimsdottir, Ph.D., of Landspitali-University Hospital, Reykjavik, Iceland, and colleagues conducted a study to determine the importance of high calcium intake and serum 25-hydroxyvitamin D for calcium homeostasis (metabolic equilibrium) in healthy adults, as determined by serum intact PTH.

The study included 2,310 healthy Icelandic adults who were divided equally into 3 age groups (30-45 years, 50-65 years, or 70-85 years) and recruited from February 2001 to January 2003. They were administered a semi-quantitative food frequency questionnaire, which assessed vitamin D and calcium intake. Participants were further divided into groups according to calcium intake (less than 800 mg/d, 800-1200 mg/d, and greater than1200 mg/d) and serum 25-hydroxyvitamin D level (less than 10 ng/mL, 10-18 ng/mL, and greater than 18 ng/mL). A total of 944 p
'"/>

Contact: Gunnar Sigurdsson, M.D., Ph.D.
gunnars@landspitali.is
JAMA and Archives Journals
8-Nov-2005


Page: 1 2 3

Related medicine news :

1. Vitamin D supplements may offer cheap and effective immune system boost against TB
2. Vitamin D supplements should be given to Asian children for two years from birth
3. Vitamin A deficiency linked to major intestinal surgery
4. Vitamin D and calcium supplements have varied effects on breast cancer risk
5. Vitamin D targets thrombosis in cancer patients
6. Vitamin C depletion correlates with lower body fat, not weight loss during short-term diet
7. Vitamin C and E supplements do not prevent pre-eclampsia in pregnant women at risk
8. Vitamin D inhibits progression of some prostate cancers
9. Vitamin D signals to prevent bone loss during osteoporosis
10. Vitamin D supplementation during pregnancy could reduce osteoporosis in children
11. Vitamin D can play role in lung health

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/15/2019)... ... , ... Heritage Woods of Rockford Administrator Jaclyn O’Keefe has been named Administrator ... is part of the NCAL Awards Program, which recognizes exemplary assisted living caregivers. Honorees ... year’s recipients is that they all go out of their way to ensure assisted ...
(Date:8/14/2019)... ... , ... New Hampshire-based Vera Roasting Company , makers of the only ... line of CBD-infused coffees with the release of a new higher-dosage organic Wellness ... “We are excited to expand our CBD-infused product lines to include a more potent ...
(Date:8/14/2019)... ... ... Today, consumers are taking a harder look at what goes into their bodies. ... levels. The trick is finding food and beverages that are delicious and nutritious to ... created Chase – a delicious, guilt free cocktail mixer that doesn’t compromise ...
(Date:8/12/2019)... ... August 12, 2019 , ... Injured ... to donations received through the 4th annual Lockton Warfighter Sports Charity Challenge being ... , Participating in the event again this year will be fifty ...
(Date:8/9/2019)... ... August 09, 2019 , ... ... its second opioid treatment program (OTP) in Ohio. MedMark Lebanon will provide medically-supervised ... The clinic, located at 1521 Walmart Drive, is now accepting patients. , ...
Breaking Medicine News(10 mins):
(Date:8/15/2019)... , ... August 15, 2019 , ... Men’s Health Memorial ... with health care experts and learn how to regain their strength and vitality. ... taking the first step to do something about it is not always easy,” said ...
(Date:8/15/2019)... ... 2019 , ... Inc. magazine revealed that Skysis is No. ... nation’s fastest-growing private companies. The list represents a unique look at the most ... Dell, Domino’s Pizza, Pandora, Timberland, LinkedIn, Yelp, Zillow, and many other well-known names ...
(Date:8/14/2019)... ANDOVER, Mass. (PRWEB) , ... August 14, 2019 ... ... Andover, Massachusetts, is continuing its research and development of its drug platform GVT ... Illness (GWI), ALS, and Parkinson’s disease among others. Overwhelming data from multiple animal ...
Breaking Medicine Technology:
Cached News: