Not a scientist, nor do I claim to be one...T-shirts, blue jeans, baseball hats and beer...Stealer of fine memes...Frequent F-bombs 😬🤣
Even if you use a fluoride-free toothpaste, you are most like still being exposed to fluoride in some shape or form. If it's in your municipality's water supply, you're taking in fluoride, even if it's filtered. I did some research on water filters for pitchers, and also filters on faucets. Those filters do NOT remove fluoride. And a lot of bottled water has been third-party tested, and the results mostly showed fluoride is in that water also.
DO test your turmeric, depending on what brand you bought. I bought 11 lbs of organic in bulk years ago, still using it, tested out good.
Below link works, but just in case, here's something:
"You will have to take some warm water in a glass and pour in a little quantity of turmeric on the surface. You need not stir or mix it and leave it for around 20 to 30 minutes. If all the turmeric powder settles at the bottom of the glass and the water is crystal clear, then the turmeric is pure."
https://www.lybrate.com/topic/turmeric-haldi-how-to-identify-if-it-is-pure-or-not/eb61b956dc62ad31c596460003007383#:~:text=You%20will%20have%20to%20take,then%20the%20turmeric%20is%20pure.