New research found that cannabis stimulates appetite in both rats and humans, suggesting the munchies are driven by shared biological mechanisms rather than culture or expectation. The findings could help scientists better understand appetite regulation and explore future treatments for conditions involving nausea, weight loss, or reduced food intake, while highlighting the need for further clinical research.
Almost anyone familiar with weed knows that urgent, absurd, and sometimes unstoppable need to eat something after getting high: the munchies. But, apparently, it isn’t an exclusively human experience, nor a cultural myth. Rats seem to get the munchies too, and that could tell us quite a lot about appetite, the endocannabinoid system, and potential medical applications of cannabis.
A joint study by the University of Calgary and Washington State University analyzed how cannabis impacts appetite in both rats and humans. The research, published in Proceedings of the National Academy of Sciences, sought to better understand what happens in the body and brain when THC triggers that overwhelming urge to eat.
The Munchies Were Not Just a Human Thing
The Canadian portion of the work was led by neuroscientist Matthew Hill and researcher Catherine Hume, from the University of Calgary. There, the team exposed rats to cannabis vapor and observed that, during the first hour, the animals ate significantly more. In other words, their appetite was stimulated—and substantially so.
For years, the “munchies” have been treated as an anecdote of cannabis culture, or even as a possible placebo response. But seeing similar behavior in rats changes the conversation: if other mammals respond in a similar way, the phenomenon cannot simply be explained by habit, suggestion, or social context. Something physiological is clearly going on.
The methodology also matters. As Hill explained, many previous animal studies used injectable cannabinoids, such as THC. …
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Author: Camila Berriex / High Times
