Navigation Links
Study suggests higher levels of omega-3 in diet are associated with better sleep

A randomised placebo-controlled study by the University of Oxford suggests that higher levels of omega-3 DHA, the group of long-chain fatty acids found in algae and seafood, are associated with better sleep. The researchers explored whether 16 weeks of daily 600 mg supplements of algal sources would improve the sleep of 362 children. The children who took part in the study were not selected for sleep problems, but were all struggling readers at a mainstream primary school. At the outset, the parents filled in a child sleep questionnaire, which revealed that four in ten of the children in the study suffered from regular sleep disturbances. Of the children rated as having poor sleep, the researchers fitted wrist sensors to 43 of them to monitor their movements in bed over five nights. This exploratory pilot study showed that the children on a course of daily supplements of omega-3 had nearly one hour (58 minutes) more sleep and seven fewer waking episodes per night compared with the children taking the corn or soybean placebo. The findings are due to be published in the Journal of Sleep Research.

The two-phased study looked at sleep in 362 healthy 7-9 year old UK school children in relation to the levels of omega-3 and omega-6 long-chain polyunsaturated fatty acids (LC-PUFA) found in fingerstick blood samples. Previous research has suggested links between poor sleep and low blood omega-3 LC-PUFA in infants and in children and adults with behaviour or learning difficulties. However, this is the first study to investigate possible links between sleep and fatty acid status in healthy children.

At the start of the study, parents and carers were asked to rate their child's sleep habits over a typical week (using a three-point scale). Their responses to the well-validated Child Sleep Habits Questionnaire indicated that 40 percent of the children had clinical-level sleep problems, such as resistance to bedtime, anxiety about sleep and constant waking in the course of the night.

The study finds that higher blood levels of the long-chain omega-3 DHA (the main omega-3 fatty acid found in the brain) are significantly associated with better sleep, including less bedtime resistance, parasomnias and total sleep disturbance. It adds that higher ratios of DHA in relation to the long-chain omega-6 fatty acid AA (arachidonic acid) are also associated with fewer sleep problems.

Lead author Professor Paul Montgomery of Oxford University said: 'To find clinical level sleep problems in four in ten of this general population sample is a cause for concern. Various substances made within the body from omega-3 and omega-6 fatty acids have long been known to play key roles in the regulation of sleep. For example, lower ratios of DHA have been linked with lower levels of melatonin, and that would fit with our finding that sleep problems are greater in children with lower levels of DHA in their blood.'

Co-investigator Dr Alex Richardson of Oxford University said: 'Previous studies we have published showed that blood levels of omega-3 DHA in this general population sample of 7-9 year olds were alarmingly low overall, and this could be directly related to the children's behaviour and learning. Poor sleep could well help to explain some of those associations.

'Further research is needed given the small number of children involved in the pilot study. Larger studies using objective sleep measures, such as further actigraphy using wrist sensors, are clearly warranted. However, this randomised controlled trial does suggest that children's sleep can be improved by DHA supplements and indicates yet another benefit of higher levels of omega-3 in the diet.'


Contact: University of Oxford News and Information
University of Oxford

Related biology news :

1. Love or kill thy neighbor? New study into animal social behavior
2. Cholesterol study suggests new diagnostic, treatment approach for prostate cancer
3. Bright pulses of light could make space veggies more nutritious, says CU-Boulder study
4. IOF-IFCC study summarizes fracture prediction strength of reference bone turnover markers
5. IU study: College athletes often sidelined from healthy lifestyle later in life
6. Yosemite bears and human food: Study reveals changing diets over past century
7. Study pinpoints protective mutations for type 2 diabetes
8. Competition breeds new fish species, study finds
9. Methane leaks from palm oil wastewater are a climate concern, CU-Boulder study says
10. Study projects big thaw for Antarctic sea ice
11. Breast-feeding benefits appear to be overstated, according to study of siblings
Post Your Comments:
(Date:11/11/2015)... , Nov. 11, 2015   MedNet Solutions , ... spectrum of clinical research, is pleased to announce that it ... Clinical Trials (PCT) event, to be held November 17-19 ... able to view live demonstrations of iMedNet ... learn how iMedNet has been able to deliver ...
(Date:11/10/2015)... About signature verification Signature ... identify and verify the identity of an individual ... secure and accurate method of authentication and is ... because each individual,s signature is highly unique. Signature ... signature of an individual is compared and matched ...
(Date:11/9/2015)... SAN JOSE, Calif. , Nov. 9, 2015 /PRNewswire/ ... of human interface solutions, today announced broader entry into ... of vehicle-specific solutions that match the pace of consumer ... drivers, and biometric sensors are ideal for the automotive ... the vehicle. Europe , ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... Cepheid (NASDAQ: CPHD ) today announced ... conference, and invited investors to participate via webcast. ... December 1, 2015 at 11.00 a.m. Eastern Time ... December 1, 2015 at 11.00 a.m. Eastern Time ... York, NY      Tuesday, December 1, 2015 at ...
(Date:11/24/2015)... ... November 24, 2015 , ... ... year and one of the premier annual events for pharmaceutical manufacturing: 2015 Annual ... November 2015, where ISPE hosted the largest number of attendees in more than ...
(Date:11/24/2015)... ... ... This fall, global software solutions leader SAP and AdVenture Capital brought together dozens ... BIG ideas to improve health and wellness in their schools. , Now, the top ... of SAP's Teen Innovator, an all-expenses paid trip to Super Bowl 50, and an ...
(Date:11/24/2015)... 24, 2015  Tikcro Technologies Ltd. (OTCQB: TIKRF) today announced that its ... at 11:00 a.m. Israel time, at the law ... Allon Street, 36 th Floor, Tel Aviv, Israel ... and Izhak Tamir to the Board of Directors; ... directors; , approval of an amendment to certain terms of options ...
Breaking Biology Technology: