Even though the mice on the fatty diet got heavier, the increase in stress hormone in their fur wasn’t linked to how fat they became—it seems the diet itself caused the change.

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Evidence from Studies

Supporting (1)

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High fat diet induces obesity, alters eating pattern and disrupts corticosterone circadian rhythms in female ICR mice

Cohort Study

Animal

2023

The study found that mice on a high-fat diet had more stress hormone in their hair, even though they also got fatter — but the scientists didn’t find a link between how fat they got and how much stress hormone increased, suggesting the hormone change happened on its own.

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No contradicting evidence found

Source Study

High fat diet induces obesity, alters eating pattern and disrupts corticosterone circadian rhythms in female ICR mice

Score: 15

DOI: 10.1371/journal.pone.0279209

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