SSS 2012-05-17

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In the experiment, researchers gave groups of mice either standard feed or a high-fat diet for 100 days. Some ate at random³ intervals⁴, day and night. Others were restricted to feeding only during eight-hour windows in every 24-hour period.

 

Mice on the high-fat but time-restricted diet gained less weight and suffered less liver damage than the mice who ate around the clock. And they had improved nutrient⁵ utilization⁶ and glucose⁷ tolerance⁸, among other markers of metabolic⁹ health. Both groups ate the same food in the same amounts, so the only difference was the timing. The study was published in the journal Cell Metabolism¹⁰.

 

The researchers say when mice eat regularly all day and night, it throws off their metabolic cycles. Like if we don’t sleep well, we don’t function as well cognitively¹¹ during the day. They suggest the same may be true for human metabolism. Which means that when we eat could play a role in controlling obesity¹².

 

Thanks for the minute for Scientific Americans 60 second Science, I am Cynthia Graber.

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