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I still don't see the cause. Eating is the cause ? How is that surprising ?

You can have a finding without knowing the underlying cause. As an easy example, see gravity.

In this case, the presumption is that it isn't necessarily the eating? It is specifically the sequence of fasting -> eating. As just eating with no fasting involved does not trigger this. Similarly, just fasting did not get this response, but it primed the mice so that their next meal did.

Yeah the title is "The surprising cause of fasting’s regenerative powers", I wanted to know about the cause. The article doesn't mention it.

Clickbait article.

Apologies on missing this. Fair. I was interested in the link and the idea that there is something there, even if we don't know what.

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