You know that Fluoride are contain in your toothpaste. To prevent your tooth cavity. and no harm when used at rate of 1 ppm in drinking water for the purpose of reducing tooth
decay. but if you use for excessive, can cause nausea, vomiting, diarrhea, and cramps. Can aggravate asthma and cause severe bone changes, making movement painful. Irritant to the eyes, skin, nose, and throat.
