Question: how many mg of iron does a 3 year old need?
Answer: Toddlers ages 1–3 years need 7 milligrams of iron each day. Kids ages 4–8 years need 10 milligrams while older kids ages 9–13 years need 8 milligrams. Teen boys should get 11 milligrams of iron a day and teen girls should get 15 milligrams.