By bloat, do you mean water or gas?

Certain foods give me gas--but not reliably. By gas, I mean the distended belly kind. Pork rinds, peanuts, sometimes collagen from pork ribs. I made a big pot of soup after a pig roast one summer, ate nothing but it the next day--ended up like the blueberry boy from Charlie and the Chocolate Factory. I think it depends on the current state of my gut bacteria or something.

I also started getting run to the bathroom type digestive issues any time I ate any kind of meat broth. I noticed meat stewed in tomatoes didn't give the same issues, so I tried making soup with vinegar--and broth hasn't been a problem since.

Don't know if any of this applies to you, but if it's some sort of undefined food intolerance, vinegar seems to at least partly fix mine.