The level of fluoride in the fluoride the bottled drinking water has implications for prescription of fluoride supplements as well as for possible fluorosis. The American Dental Association continues its endorsement of fluoridation of community water supplies in order to adjust the natural level of fluoride to a concentration sufficient to protect against tooth decay, a range of from 0.7 to 1.2 ppm. Recommended level of fluoride in the water for warm countries like Saudi Arabia should be in the range of 0.6-0.7 ppm, due to the larger amount of water consumption in the hot climate compared to the temperate countries. The American Academy of Pediatric Dentistry recommends that fluoride supplements should be considered for all children drinking fluoride-deficient water. After determining the fluoride level of the water supply or supplies, evaluating other dietary sources of fluoride, assessing the child’s caries risk, the daily fluoride supplement dosage can be determined using the Dietary Fluoride Supplementation Schedule.