Navigation Links
New study of environmental contaminants in breast milk
Date:1/21/2011

The levels of environmental contaminants in a mother's body decrease during breast-feeding. After a year of lactation, the levels of a number of environmental contaminants in breast milk drop by 15 94 per cent, according to a recent study from the Norwegian Institute of Public Health. There has been little study into this topic previously.

Breast milk is nutritionally the best food for infants and contains all the substances a child needs for optimal growth and development. However, breast milk contains low but measurable concentrations of environmental contaminants, health-harming chemicals from industry and manufacturing products that are widely spread in the environment.

Environmental contaminants enter the body through food and are partly excreted in breast milk. The contaminant levels in breast milk reflect those in the mother's body and are therefore ideal for monitoring exposure levels.

Norwegian women are among the mothers in the world who breast-feed their children longest; about 80 per cent of babies receive breast milk when they are six months old, and it is not unusual to breast-feed until the child is more than eighteen months old. This makes it especially important to study which contaminants infants are exposed to through breast milk in Norway.

The Department of Analytical Chemistry at the Norwegian Institute of Public Health has recently investigated how the content of environmental contaminants in breast milk changes during the lactation period for each mother. Over 30 compounds of known contaminants such as brominated flame retardants, PCBs, and perfluorinated compounds were studied.

The study shows that the levels of almost all compounds in milk decrease with time, and are reduced by 15-94 per cent within a year of lactation. This must be considered when evaluating the benefits and possible risks of breast-feeding.

From previous studies we know that the levels of known environmental contaminants in breast milk and blood have fallen sharply in recent decades. The exceptions are brominated flame retardants and perfluorinated compounds, which first began to decline around the turn of the century.

The decline shows that measures taken by industry and by authorities to reduce the spread of these substances into the environment has meant that the population does not ingest as many environmental contaminants as before.


'/>"/>

Contact: Julie Johansen
julie.johansen@fhi.no
Norwegian Institute of Public Health
Source:Eurekalert

Related biology news :

1. How the hat fits: Structural biology study reveals shape of epigenetic enzyme complex
2. UC Davis study shows plants moved downhill, not up, in warming world
3. University of Illinois study confirms glycerin as a feasible feedstuff for swine
4. University of Maryland shares NSF grant to study urban development impact
5. Study finds psychological, environmental benefits of horticultural activities
6. New study shows soy protein lowers non-HDL cholesterol significantly more than milk protein
7. Big city life may make residents lean toward green, study says
8. Columbia University uses technological innovation to study bone structure
9. Study finds fisheries management makes coral reefs grow faster
10. UCSF study identifies chemicals in pregnant women
11. Texas A&M study finds courtship affects gene expression in flies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/6/2017)... 6, 2017 According to Acuity Market ... border authorities to continue to embrace biometric and ... 2143 Automated Border Control (ABC) eGates and 1436 ... more than 163 ports of entry across the ... achieving a combined CAGR of 37%. APC Kiosks ...
(Date:2/2/2017)... Feb. 2, 2017  EyeLock LLC, a market leader ... white paper " What You Should Know About Biometrics ... ensuring user authenticity is a growing concern. In traditional ... users. However, traditional authentication schemes such as username/password suffer ... Biometric authentication offers an elegant solution to the problem ...
(Date:1/30/2017)... 2017   Invitae Corporation (NYSE: ... companies, today announced that it will report its fourth ... guidance on Monday, February 13, 2017, and Invitae,s management ... 4:45 p.m. Eastern / 1:45 p.m. Pacific. ... review financial results, guidance, and recent developments and will ...
Breaking Biology News(10 mins):
(Date:2/24/2017)... 2017 China Cord Blood Corporation (NYSE: ... provider of cord blood collection, laboratory testing, hematopoietic stem ... its unaudited financial results for the third quarter and ... 31, 2016. Third Quarter of Fiscal 2017 ... of fiscal 2017 increased by 18.6% to RMB200.9 million ...
(Date:2/23/2017)... and NEW YORK , ... Lumeon , a leading digital health company, ... a provider of telemedicine and remote patient monitoring, ... for telemedicine reimbursements.  DN Telehealth ... patients, in real-time, extending consultations beyond a physical ...
(Date:2/23/2017)... , Feb. 23, 2017  In Atlanta, it seems ... fashion, and culture intertwine to create an expressive and dynamic ... reflect this energy and contribute to it. ... Hair Fairies seeks to carry on that tradition ... Atlanta salon is the newest of ...
(Date:2/23/2017)... ... 2017 , ... David Nolte, PhD accepted Purdue University’s 2016 ... Research Park of West Lafayette, Indiana. , The top commercialization award is ... success with, commercializing discoveries from Purdue research. “This award is truly an honor. ...
Breaking Biology Technology: