My mum is Polish, and this Christmas she made Bigos (Polish Hunter's stew) which is basically loads of pork, bacon, cabbage - YUM. Bigos - Wikipedia, the free encyclopedia

Anyway, this morning I was eating some for breakfast - cold, and she told me that it wasn't good to eat something so fatty cold. When i asked why, she wasn't really able to answer - she just said she had a feeling about it, and it's not good for digestion... or something.

Has anyone ever heard this before? Is it an old wives tale, Polish CW, or wisdom from older generations that been lost? (not that my mum is actually old..! She's in her 50s)