Featured Research

from universities, journals, and other organizations

Pregnant women in Vancouver may not be getting enough vitamin D

Date:
August 11, 2011
Source:
Child & Family Research Institute
Summary:
Pregnant women taking prenatal supplements may not be getting enough vitamin D, shows a new Vancouver-based study.

Pregnant women taking prenatal supplements may not be getting enough vitamin D, shows a new Vancouver-based study led by the Child & Family Research Institute at BC Children's Hospital that was published August 11 in the Canadian Journal of Public Health.

Related Articles


The study found that while almost 80 per cent of pregnant women reported taking supplements containing vitamin D, many were vitamin D insufficient. Insufficient means that blood levels of the specific vitamin are below national recommendations. The study of 336 women who were 20-35 weeks pregnant found that:

• 65 per cent of pregnant women have vitamin D levels lower than recommended by the Canadian Paediatric Society for pregnant and breastfeeding women.

• 24 per cent of pregnant women have vitamin D levels lower than recommended by Health Canada for women of all ages including those who are pregnant and breastfeeding.

"We know vitamin D is vital to the health of women and their babies, but there is currently little consensus on how much vitamin D pregnant women need for optimum health." says Dr. Timothy Green, who led the research. Dr. Green is a scientist at the Child & Family Research Institute (CFRI) and an associate professor, Faculty of Land & Food Systems, University of British Columbia (UBC). "This research shows that, regardless of the recommendation you use, a significant number of women are not getting enough vitamin D."

Vitamin D is essential for bone growth and development in the fetus. Low levels of vitamin D at birth have been associated with lower birth weight and can lead to rickets. In addition, newborns with low levels of vitamin D may have increased risk of developing type 1 diabetes, asthma and low bone mass in later life. Low levels of vitamin D may also increase a woman's risk of preeclampsia. Preeclampsia is the sudden onset of high blood pressure in pregnancy and the leading cause of maternal death in Canada.

Women were recruited for this study at BC Women's Hospital & Health Centre, an agency of the Provincial Health Services Authority; Douglas College prenatal programs; and community health centres. Participants gave a blood sample and completed a questionnaire on pre-pregnancy weight, age, smoking status, ethnicity, annual income, education and diet. The research found factors with the greatest impact on vitamin D levels included average sun exposure at the time of participation in the study, vitamin D intake from food and supplements, and skin colour.

"We can obtain vitamin D from the sun, but in our climate we see little sunlight five to seven months a year," says Dr. Green. "There are few good natural sources of vitamin D and fortified foods do not contain enough vitamin D on their own."

"That's why research into supplements, how much pregnant women should be taking and how effective they are, is so important," says Dr. Green. Dr. Green's current research focuses on vitamin D intake in pregnant and breastfeeding women to determine how much of the vitamin women need to consume to meet national recommendations.


Story Source:

The above story is based on materials provided by Child & Family Research Institute. Note: Materials may be edited for content and length.


Cite This Page:

Child & Family Research Institute. "Pregnant women in Vancouver may not be getting enough vitamin D." ScienceDaily. ScienceDaily, 11 August 2011. <www.sciencedaily.com/releases/2011/08/110811162837.htm>.
Child & Family Research Institute. (2011, August 11). Pregnant women in Vancouver may not be getting enough vitamin D. ScienceDaily. Retrieved March 6, 2015 from www.sciencedaily.com/releases/2011/08/110811162837.htm
Child & Family Research Institute. "Pregnant women in Vancouver may not be getting enough vitamin D." ScienceDaily. www.sciencedaily.com/releases/2011/08/110811162837.htm (accessed March 6, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, March 6, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Just A Half-Hour Of Lost Sleep Could Lead To Weight Gain

Just A Half-Hour Of Lost Sleep Could Lead To Weight Gain

Newsy (Mar. 6, 2015) A new study found losing just half an hour of sleep could make you gain weight. Video provided by Newsy
Powered by NewsLook.com
Suicide Rates Up For Young Women In U.S.

Suicide Rates Up For Young Women In U.S.

Newsy (Mar. 6, 2015) According to a report from the CDC, suicide rates among young women increased from 1994 to 2012 while rates among young men have decreased. Video provided by Newsy
Powered by NewsLook.com
Bupa Eyes India Healthcare Opportunities

Bupa Eyes India Healthcare Opportunities

Reuters - Business Video Online (Mar. 5, 2015) Bupa is hoping to expand in India&apos;s fast-growing health insurance market, once a rule change on foreign investment is implemented. The British private healthcare group&apos;s CEO tells Grace Pascoe why it&apos;s so keen on the new opportunity. Video provided by Reuters
Powered by NewsLook.com
Liberia Releases Last Ebola Patient, But Threat Remains

Liberia Releases Last Ebola Patient, But Threat Remains

Newsy (Mar. 5, 2015) Liberia&apos;s last Ebola patient has been released, and the country hasn&apos;t recorded a new case in a week. However, fears of another outbreak still exist. 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