Higher fibre intake linked to later periods, scientists say

Prepubescent girls who consume more fibre in their diets can decrease by 50 per cent the risk of early onset of menstruation, say scientists at the University of Toronto.

"The risk of early menarche for girls who consumed more than 25 grams of dietary fibre a day [in the form of cereals, whole grains, vegetables and fruit] was approximately half that of girls who had less than 18 grams of fibre a day," says Malcolm Koo, a professor in public health sciences at U of T.

For his doctoral thesis, Koo studied the role of dietary fibre and its link to the onset of menstruation. The study, which took place from 1992 to 1996, involved 637 pre-menstrual girls in Ontario between the ages of six and 14. Information on dietary intake, physical activity, maternal history and date of menarche was collected. In the study, the age of menstrual onset ranged from 8.5 to 15.6 years with a median age of 13.6.

Estrogen, a hormone that develops and maintains female characteristics, is known to bind with fibre in the body, Koo says. Girls with higher fibre diets may be expelling more estrogen which correlates with later onset of menarche. As part of his research, Koo also found that girls who consume higher amounts of monounsaturated fats in their diet (such as olive and canola oil) also experience later onset of menarche.

Early menarche (for girls 12 and under) correlates to a 10 to 15 per cent higher risk of breast cancer later in life. Evidence suggests that women who have been menstruating longer have increased breast tissue exposure to estrogen, which is linked to an increased risk of developing breast cancer. The study was recently published in Public Health Nutrition and funded by the National Cancer Institute of Canada.


Contact: Janet Wong
University of Toronto

Page: 1

Related biology news :

1. Higher blood levels of sitosterol may be associated with increased risk for coronary events
2. Study: Higher energy intake, obesity affects all age groups, not just youths
3. Basic Research and Higher Education Program Conference breaks new ground
4. Higher fat diets show same positive effects on LDLs as low fat diet
5. Higher obesity rates prevail among Dutch women exposed to famine in utero
6. New Hampshire Study Shows Well Water Has Higher Arsenic Levels Than Municipal Water
7. Higher Levels Of Protein May Predict Heart Disease
8. Software Helps Decipher Genomes Of Higher Organisms
9. New Research: Children Inhale Higher Percentage Of Pollution
10. New Analytical Methods Indicate Higher Folic Acid Concentration In Beans And Peas
11. Eating Less Fat At One Meal May Lead To Higher Fat Intake Later

Post Your Comments:

(Date:10/29/2015)... Oct. 29, 2015  The J. Craig Venter Institute ... "DNA Synthesis and Biosecurity: Lessons Learned and Options for ... Health and Human Services guidance for synthetic biology providers ... --> --> Synthetic ... the potential to pose unique biosecurity threats. It now ...
(Date:10/29/2015)... , Oct. 29, 2015  Connected health pioneer, ... the explosion of technology-enabled health and wellness, and the ... book, The Internet of Healthy Things ... or smartphones even existed, Dr. Kvedar, vice president, Connected ... health care delivery, moving care from the hospital or ...
(Date:10/27/2015)... In the present market scenario, security is ... industry verticals such as banking, healthcare, defense, electronic gadgets, ... for secure & simplified access control and growing rate ... of bank accounts, misuse of users, , and so ... laptops, and smartphones are expected to provide potential opportunities ...
Breaking Biology News(10 mins):
(Date:11/30/2015)... (PRWEB) , ... November 30, 2015 , ... ... M.D., will join physicians, aesthetic practitioners and aesthetics professionals from Central America and ... to be held in Panama City, Panama Feb. 17-19, 2016. Testart will present ...
(Date:11/30/2015)... Dec. 1, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ), ... joined the American Business Act on Climate Pledge, alongside more ... standing with the Obama Administration to demonstrate an ongoing commitment ... outcome to the COP21 Paris climate ... Sarnia, Canada . --> BioAmber ...
(Date:11/30/2015)... Spherix Incorporated (Nasdaq: SPEX ) an ... and monetization of intellectual property, today provided an ... to create shareholder value. Anthony ... on published reports, the total addressable market of ... Spherix will seek to secure fair and reasonable ...
(Date:11/30/2015)... -- HUYA Bioscience International, the leader in accelerating global development ... announced it has signed a Memorandum of Understanding with ... between KDDF and HUYA with the ultimate goal of ... the global market. China,s ... preclinical and clinical stage compounds. The company advances the ...
Breaking Biology Technology:
Cached News: