Fluorine is very important for bones and teeth, but since very little amount is added to supplements, we have not included a large volume of data on this element.
Fluorine is beneficial in most cases in preventing dental caries, but the addition of fluoride to drinking water has become a controversial subject in most of the societies.
Excess fluorine stains the teeth with mottled spots - known as dental fluorosis
There is some evidence that it is effective in the treatment of osteoporosis, as an increase in the retention of calcium was noted, together with a reduction of bone demineralization, by some people treated with fluorine salts.
Fluorine can be found in water as well as the food grown in areas where fluorine is present in the soil and water.