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:5/26/2016)... ... May 26, 2016 , ... Dr. James Maisel will present ... Island Chapter on June 4, 2016, 1:30-3:30 pm at the Farmingdale Public Library. ... Retina Group of New York , is a Board Certified ophthalmologist who completed ...
(Date:5/26/2016)... ... 26, 2016 , ... Leadership of Life Science Logistics (LSL), ... has earned its ISO 13485 certification, indicating the company’s quality control system for ... policies associated with ISO quality standard 13485. , BSI Group America, Inc., ...
(Date:5/26/2016)... CA (PRWEB) , ... May 26, 2016 , ... ... be offering campers a multitude of activities from daily practices, arts & crafts, ... , Camp Directors Amber East-D’Anna and Christy Evans have combined backgrounds in kids’ ...
(Date:5/26/2016)... ... May 26, 2016 , ... Power Systems, ... the first PowerWave Instructor Certification Course in Stoughton, Massachusetts. The course was led ... professional through the 8 hour interactive course to qualify participants as certified PowerWave ...
(Date:5/26/2016)... ... May 26, 2016 , ... A health conscious snack that doesn't sacrifice taste? ... has ignited an undeniable buzz in the protein product community by offering an alternative ... These doughnuts are packed with 11 grams of protein and made from a healthy ...
Breaking Medicine News(10 mins):
(Date:5/25/2016)... , May 25, 2016  Granger Diagnostics today ... test for wounds and infections. This test ensures ... and select viruses. The test requires only a ... David G. Bostwick , MD, ... to facilitate wound healing: "We are excited to ...
(Date:5/24/2016)... Niederländische Chirurgen haben eine ... Ärzten erlaubt, ihre Expertise weltweit zu teilen und ... Streaming mit einer Instant-Messaging-Funktion und der Möglichkeit, in ... Europa, Afrika, Asien und den USA ... registriert. Information und Weiterbildung   ...
(Date:5/24/2016)... ARANZ Medical  Ltd a specialist ... has been named the Coretex Hi-Tech Emerging Company of the ... Dr Bruce Davey , CEO of ARANZ Medical says, ... good to be recognised for the work we are doing ... in 35 countries around the world from Sub-Saharan Africa through ...
Breaking Medicine Technology: