Navigation Links
High vitamin A increases risk of hip fractures

Too much vitamin A may increase the risk of hip fractures in older women. Vitamin A is important for such things as healthy skin and hair and bone growth.// Researchers found that women with the highest total intake - both from food and vitamin supplements - had double the risk of hip fractures compared with women with the lowest intake.

One theory is that too much vitamin A inhibits the ability of Vitamin D to help the body absorb calcium, said lead author, Diane Feskanich, an epidemiologist at Brigham and Women's Hospital in Boston. She said previous studies also suggest vitamin A affects cells that work in bone remodeling.

The adverse effects appear to be caused only by too much retinol -- the true form of vitamin A, found in such things as liver, fish oils and supplements - and not by foods rich in beta carotene, such as dark, leafy vegetables. Beta carotene is converted by the body to vitamin A as needed.

The Institute of Medicine -- a private science organization that sets the nation's recommended daily allowances for nutrients -- recommends that women get 700 micrograms a day of the vitamin. But multivitamins typically contain about 1,500 micrograms because the U.S. Food and Drug Administration has not updated vitamin supplement labels, Feskanich said.

She said the FDA should consider lowering labeling standards for vitamin A. Also, some foods currently fortified with the vitamin might not need to be, or could be fortified with beta carotene instead of retinol. Researchers cautioned that people should not stop taking multivitamins, which help lower the risk of other diseases. Instead, consumers might consider a multivitamin that supplies some of its vitamin A from beta carotene.


'"/>




Page: 1

Related medicine news :

1. Beer vitamin protects heart
2. Re-blockage of heart arteries prevented by vitamins
3. Excess vitamin A increases fracture risk
4. Former smokers can be protected with vitamin A derivative
5. Teens vitamin D deficiency an epidemic
6. Eating food rich in calcium and vitamin D helps fight PMS
7. Older People May Not Need Multivitamins To Prevent Infections
8. Latest Research Shows That Multivitamins Might Not Prevent Infections In All Elderly
9. vitamin D needed in elderly for bone development
10. Vitamin D is a great vitamin: so gorge!
11. Using Multivitamins Before And After Conception Averts Preeclampsia
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/22/2017)... , ... January 22, 2017 , ... Zifam Pinnacle, an ... the world, recently met with big-name retail buyers at the January ECRM Trade Show ... efficacy and uses the utmost safety standards in all of its creations to help ...
(Date:1/21/2017)... FL (PRWEB) , ... January 21, 2017 , ... Caronlab ... recently attended the January ECRM Trade Show in Hilton Head, SC, where it benefited ... reputation for the quality of its beauty and wellness products. At this trade show, ...
(Date:1/21/2017)... ... 21, 2017 , ... Seamild, the largest manufacturer of oats in China, is ... and founder. As Oat is recognized globally as one of the healthiest cereals, XieQingkui, ... believes it is a move to sow the seed of good karma. Buddhism spirit ...
(Date:1/21/2017)... ... January 21, 2017 , ... Northern California Medical Associates (NCMA) ... their multi-specialty medical group. The dermatology practice provides general dermatologic treatment, outpatient surgery, ... add this excellent dermatology practice to our group’s medical services,” explains NCMA CEO, ...
(Date:1/21/2017)... ... 21, 2017 , ... The Nobel Biocare™ dental implant company ... for its creos™ line of bone regenerative products. Specifically, the Nobel ... utilizes creos™ allo.gain™ bone graft for a variety of bone reconstruction procedures. In ...
Breaking Medicine News(10 mins):
(Date:1/23/2017)... -- ResMed (NYSE: RMD ), BMC (Peking, ... Winter Haven, Florida ) gaben heute bekannt, dass ... globalen Rechtsstreitigkeiten zwischen den Parteien geeinigt haben. BMC und ... im Tausch gegen Lizenzgebühren an ResMed gestattet, und ResMed ... in Florida anhängige Rechtsverfahren zwischen ...
(Date:1/23/2017)... 2017 InDex Pharmaceuticals Holding AB (publ) today ... congress of the European Crohn,s and Colitis Organisation (ECCO). The ECCO ... focus on inflammatory bowel disease (IBD). The congress is held in ... ... to again having been selected to present data at the largest ...
(Date:1/21/2017)... DUBLIN , Jan 20, 2017 ... "US Clinical Laboratory Testing Market By Type of Test (Tumor, ... Independent), & By Type of Diseases (Tuberculosis, Influenza, Cancer, HIV/AIDS ... ... an attractive destination for healthcare services, market segments, especially clinical ...
Breaking Medicine Technology: