I think the problem is I've been talking to Germans. They're all crazy
. My German is limited, but I believe there were a few who claimed that all inorganic acids lead to heavy-metal accumulation in your body.
One of them lived out in the country, and he had pretty high nitrate levels (50+mg/L) in his water. He also said brewing with nitrate-heavy water was bad because the yeast converted it to nitrite. Even if that's so, I'm pretty sure the salami I know and love has way more nitrite than a beer would, if brewed with that water.