But it's well established that fluoride has no nutritional value to the body. On top of that, its proponents have produced no peer-reviewed studies showing ingestion of fluoride is preferable or even safe. We have plenty of evidence that fluoride isn't great. From warnings on toothpaste tubes and mouthwashes to decent drops in calcium and magnesium levels following overconsumption. Fluoride also inhibits enzyme activity, interferes with the body's use of essential nutrients eg calcium and iodine, increases stress from free radicals. Fluoride is clearly antagonistic to the body's biochemistry. Fluoride accumulates in teeth, bones, other critical areas like the pineal gland, over ingestion of fluoride has actually lead to symptoms akin to arthritis and hypothyroidism. This is clearly demonstrated by fluoride's effective treatment of HYPERthyroidism. Aside from all of that let's just talk about what fluoride is- more often than not a byproduct of phosphate and metal manufacturing. A byproduct that is classified as toxic waste by the EPA. A product that is bought by municipalities and magically converted from toxic waste to something safe for human consumption. When citizens learn this they get upset. That's why some municipalities have stopped fluoridation and that number is growing, many never started fluoridation. But if you wanna be a good goy and keep drinking the byproduct of aviation manufacturing, be my guest.