I'm sceptical of this source. The post claims fluoride in toothpaste (which isn't even ingested!) is a neurotoxin and refers to a review which I cannot find (https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=lanc... doesn't come up with much, closest I got were https://www.thelancet.com/journals/laneur/article/PIIS1474-4... and follow-up https://www.thelancet.com/journals/laneur/article/PIIS1474-4..., neither of which discuss fluoride toxicity in toothpaste). I think we should take this author's claims with a generous helping of salt.

With that said, I wouldn't eat the stuff, but this post goes a lot further than that.

Enough flouride to cause long-term health issues takes at least 2 mg/liter of water (probably more) over a long period of time, while artificially fluoridated water standards are 0.7 mg/liter. Even many rivers and lakes have a natural fluoride content of 0.3 mg/liter.

While there is risk from fluoridated water in some places, generally this is from unusally high natural fluoridation, from minerals leached from rock exposed by volcanic shifts or badly-regulated mining.

This is dangerous advice. Fluoridated toothpaste is incredibly important for the health of your mouth. The source you've provided is highly suspect, and the claims contradict mountains of evidence of fluoride's safety.

I looked into one of the references...they put 120mg/L in mice and found it to be bad. Drinking water has about 0.7 mg/L. This is a factor of nearly 200x on concentration and another lot on body mass. Shoot, if I drink 200x more water that will cause problems too!

Concentrations matter.

Appears as though my original comment was flagged. That's OK if the article wasn't well cited.

If you do a Fluoride search here on ycombinator you will find many article that point to fluoride as a nuerotoxin.

Cheers.