Dry Cat Food

So, is this weird? I keep smelling dry cat food. I bought potatoes at the farmers' market, and they smelled like dry cat food. I was walking down the street with MetaToddler, and despite the lack of cats and their apparent food, I smelled dry cat food. And it happened a few other instances of dry cat food.

Is this normal?

Is some dry cat food company conducting tests on pregnant women?

Is this a sign of labor infrequently discussed?

Any theories would be appreciated :-)