Will changing my diet help me to sleep better?

We are what we eat, and now researchers are saying that our diet affects how we sleep. A study, published in the journal Appetite, found differences in the diets of people who slept for seven to eight hours a night compared with those snoozing for five. Since less sleep is associated with high blood pressure, poorer blood-glucose control (increasing the risk of diabetes) and obesity (as is more sleep in some studies), shouldn't we eat the foods that are most likely to help us sleep a healthy amount? And does anyone know what foods these are?

The solution

The study in Appetite used data from the US National Health and Nutrition Examination Survey and found that those who slept the standard seven to eight hours ate the greatest variety of foods. Those who slept the least (less than five hours) drank less water, took in less vitamin C, had less selenium (found in nuts, meat and shellfish) but ate more green, leafy vegetables. Longer sleep was associated with more carbohydrates, alcohol and less choline (found in eggs and fatty meats) and less theorbomine (found in chocolate and tea). The researchers took into account other factors such as obesity, physical activity and income, and still found these differences in diet.

They concluded that both long (nine hours-plus) and short sleep are associated with less varied diets but say they don't know if changing diet would affect how long we sleep for. The study shows only an association, although the link with short and long sleep both being "unhealthy" holds true with a 2011 review of evidence about the length of sleep and risk of heart disease.

The evidence on what diet would help us sleep best isn't clear. It is also not evident how much individual preferences for sleep – some like to sleep longer than others – affect these results. But there is more research on the relationship between sleep and weight, with studies showing the shorter the amount of sleep a person has, the hungrier they feel.

http://www.guardian.co.uk/lifeandstyle/2013/feb/18/can-diet-help-sleep-better