[gnicholas]

Not GP, but presumably it's a reference to the fact that (white) rice and (refined) pasta are processed in a way that makes them tastier but not as healthy. While you can eat brown rice and whole wheat pasta, they are quite a bit less common, and not as tasty.

[nradov]

Brown rice tends to contain more arsenic than white rice. Everything in moderation.

https://doi.org/10.3389%2Ffnut.2023.1209574

[gnicholas]

Yeah, pick your poison. I've seen Prop 65 warnings on spinach, which apparently absorbs quite a bit of heavy metals from the soil. Eat your vegetables, but not too much!