It’s interesting how these things can be “healthy” and “unsafe” at the same time. Or maybe it’s because some of these health effects are often quite far-fetched (“may improve X”, “contains compounds which has, in other contexts, been known to be important for Y” whereas e.g. lead is very strongly correlated with negative effects.

Makes me wonder on an “absolute scale” what we’re really talking about here: “-100 for heavy metals, +5 for polyphenols”. If that’s the case, some things are clearly very bad, even if evil white bread comes in at -80.