Sodium fluoride is a by product of aluminium production and is poisonous in high dosage. That’s why people are so anti fluoride.
Calcium fluoride is naturally occurring and was what was discovered to be so good. Well the water it was first discovered was contaminated with sodium fluoride from aluminium but the water that promoted the research was calcium fluoride.
But while sodium fluoride is poisonous in high levels. You could drink super high levels of calcium fluoride and be totally fine.
So if you’re super worried about sodium fluoride (which you shouldn’t be in tooth paste since you should spit it out and anything you swallowed is harmless as the dosage is so low) then the alternative is to source tooth paste with calcium fluoride. Which is harder to get but it does exist.
The fact that its produced from aluminum refining is irrelevant. Also everything is poisonous in high enough doses.
I understand that calcium fluoride isn't going to harm you because its not soluble, its just like eating some inert rocks but its basically pointless to add to toothpaste.
I'm not worried about fluoride, its very helpful for dental health, I did a bunch of my PhD on this.
Calcium fluoride is naturally occurring and was what was discovered to be so good. Well the water it was first discovered was contaminated with sodium fluoride from aluminium but the water that promoted the research was calcium fluoride.
But while sodium fluoride is poisonous in high levels. You could drink super high levels of calcium fluoride and be totally fine.
So if you’re super worried about sodium fluoride (which you shouldn’t be in tooth paste since you should spit it out and anything you swallowed is harmless as the dosage is so low) then the alternative is to source tooth paste with calcium fluoride. Which is harder to get but it does exist.