I'm pretty sure nutrition is a bad example of this, but I won't get into why, since I was already planning on making my next post about nutrition.

I'm not sure about cultural anthropology or women's studies. I don't know enough about those fields.

On macro - my impression is there's more disagreement among economists about macro than about other things? So if macro is an issue where economists don't really know what they're talking about, it supports the heuristic that lack of agreement among experts indicates they don't know what's really going on. But OTOH my impression is also that economists do actually know stuff about recessions.