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Could Your Nightmares Come From Cheese? Maybe, If You’re Lactose Intolerant

Learn more about the link between food intolerance, poor sleep, and nightmares.

BySam Walters
(Image credit: Streamlight Studios/Shutterstock) null

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A slice of cheddar, a smear of brie, a sprinkle of parmesan — they’re all a dream for cheese lovers. But for people with lactose intolerance, they’re a nightmare in the making. Perhaps literally.

According to a new study, it’s possible that the consumption of cheese and other dairy products could contribute to poor sleep and nightmares among lactose-intolerant individuals. Published today in Frontiers in Psychology, the study involved over 1,000 participants who were asked about their diets, sleep patterns, and perceptions of the relationship between the two.

The results revealed that lactose intolerance, poor sleep, and nightmares are all closely connected, probably thanks to the gastrointestinal distress that’s caused by dairy, which could interfere with the sleep and dreams of those who consume it despite their intolerance.

“Nightmare severity is robustly associated with lactose intolerance and other food allergies,” said Tore Nielsen, a study author and a psychologist at ...

  • Sam Walters

    Sam Walters is a journalist covering archaeology, paleontology, ecology, and evolution for Discover, along with an assortment of other topics. Before joining the Discover team as an assistant editor in 2022, Sam studied journalism at Northwestern University in Evanston, Illinois.

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