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Nutrition for Shorter Days 

John Core, Sodexo Culinary Nutrition Lead

  • Published on Nov. 07, 2025

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Foreword

As autumn rolls in and winter follows, the days start to feel noticeably shorter. Our body clocks are closely tuned to daylight, so when evenings darken earlier, it naturally changes how we respond. 

 

Melatonin, the hormone that signals bedtime, begins to rise as soon as light fades, which is why many of us feel sleepier earlier in the evening. Cortisol, on the other hand, helps with wakefulness and energy but is also shaped by light exposure. With fewer daylight hours, it’s not unusual to notice dips in motivation or alertness. 

 

One simple way to lean into the season is through food. Using local, seasonal produce like root vegetables brings both nourishment and a sense of connection to the time of year. 

As daylight reduces, our circadian rhythm adapts accordingly. Light is the strongest cue for setting this rhythm, and without it, the body has fewer signals to stay alert. 

Shorter days often create a feeling of sluggishness, with less drive to be active and more temptation to stay indoors. 

Food can play a steadying role in this seasonal shift. Wholegrains such as oats and barley provide gradual energy release. Building these foods into regular meals helps create balance and consistency, even when daylight itself feels in short supply. 

Nutrition for Shorter Days 

Find out what can keep your energy levels up through the food you eat and tips on other ways to get through the colder months.  

Also, take a look at the further reading material for more ideas and tips.

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Recipes for nutrition on shorter days

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