> So increasing our natural amounts is somehow ok?
It can be OK, or it can be not. That's why we pay scientists to study how safe these things are.
> MSG is in our system too, but people who eat food with it added in, often complain of headaches.
You could have chosen a better example: MSG is a prime example of people overreacting to what is essentially a tasty placebo. Gram by gram, it's safer than salt.
I didn't say MSG caused headaches, because we all know that may or may not be true. I've seen the long threads on HN about it. I specifically said they complain of it. In the same way that people complain about IBS with chloramine.
At the end of the day though, I see no problem with winning by filtering it out of my water supply. It is a small cost to do so.
If the argument is that we should have it in there to keep the water clean on the way to my house, great! I'll filter it out when it gets here and I am more than happy to not drink and especially not vaporize the stuff into my lungs in the shower.
It can be OK, or it can be not. That's why we pay scientists to study how safe these things are.
> MSG is in our system too, but people who eat food with it added in, often complain of headaches.
You could have chosen a better example: MSG is a prime example of people overreacting to what is essentially a tasty placebo. Gram by gram, it's safer than salt.