New research uncovers an intriguing connection between late-night dairy and disturbing dreams, especially in those with lactose intolerance. A survey of over 1,000 students revealed that individuals who consumed cheese or other dairy products before sleep were more likely to experience bizarre dreams, with gut discomfort being the likely trigger. Gastrointestinal symptoms such as bloating and cramping may interfere with sleep and affect the dream state. Participants who reported food intolerances, particularly to lactose, were more prone to nightmares, poor sleep, and vivid dream recall. While only a small percentage believed food had a direct effect, many suspected dairy and sweets behind their unsettling sleep experiences. The findings support a growing body of evidence suggesting that what you eat, especially close to bedtime, can shape not only the quality of your sleep but also the emotional tone of your dreams.

References

Nielsen T, et al. Front Psychol. 2025;16:1544475.