WATER CONTENT LESS THAN F- 300 MICROGRAMS/LITRE (0.3 PARTS PER MILLION), CHILD UP TO 6 MONTHS NONE; 6 MONTHS-3 YEARS F- 250 MICROGRAMS DAILY, 3-6 YEARS F- 500 MICROGRAMS DAILY, OVER 6 YEARS F- 1 MG DAILY
WATER CONTENT BETWEEN F- 300 AND 700 MICROGRAMS/LITRE (0.3-0.7 PARTS PER MILLION), CHILD UP TO 3 YEARS NONE, 3-6 YEARS F- 250 MICROGRAMS DAILY, OVER 6 YEARS F- 500 MICROGRAMS DAILY
WATER CONTENT ABOVE F- 700 MICROGRAMS/LITRE (0.7 PARTS PER MILLION), SUPPLEMENTS NOT ADVISED .