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Study suggests higher levels of omega-3 in diet are associated with better sleep
Date:3/6/2014

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.'


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