When people sleep more they also eat less sugar and carbs

A person sleeping

Not-so-sweet dreams

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Want to eat better? Sleep more. Increasing the amount of sleep a person gets has been linked to eating fewer sugary foods, and making better nutritional choices.

Wendy Hall, at King’s College London, and her team enlisted 42 volunteers to help them investigate the link between sleep and diet. Half the participants were given advice on how to get more sleep – such as avoiding caffeine before bed, establishing a relaxing routine, and trying not to go to bed too full or hungry. This advice was intended to help them boost the amount of sleep they each got by 90 minutes a night. The remaining 21 volunteers received no such advice.

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The team found that, of those who were given the advice, 86 per cent spent more time in bed, and around half slept for longer than they used to. These extended sleep patterns were associated with an average reduction in the intake of free sugars of 10 grams a day. People who were getting more sleep also ate fewer carbohydrates. There were no significant changes in diet in the control group.

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Good night

Free sugars include those that are added to foods by manufacturers or during cooking at home, as well as sugars in honey, syrups and fruit juice.

“The fact that extending sleep led to a reduction in intake of free sugars suggests that a simple change in lifestyle may really help people to consume healthier diets,” says Hall.

This isn’t the first study to link diet and sleep. A 2011 study that followed more than 1500 middle-aged people for six years found that those who became obese during that time slept an average of 6.3 hours a night, compared with 7.2 hours in those who kept a healthier body weight.

Journal reference: American Journal of Clinical Nutrition

Read more: So many reasons why sleep is too important to miss

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