Fluoride, which is a toxic element, comes from various sources, toothpaste, dental fluoride treatment, drinking water, and high fluoride containing foods.
Fluoride is known to cause toxicities in multiple organs including the liver and the kidney and the brain. It is known that fluoride lowers IQ in children, and increase risk of bone cancer in boys.
The simple preventative is vitamin C. Read here for more information on fluoride and vitamin C.
簡單的預防措施是維生素 C。閱讀此處了解有關氟化物和維生素 C 的更多信息。