The conversation between human and AI assistant.
[|Human|] Given this reference test, what is the daily recommended amount of magnesium for women in the U.S.?
[|AI|] The daily recommended amount of magnesium for women in the U.S. is 310 mg for ages 19-30 and 320 mg for older.
[|Human|] 
Given this reference test, what is the daily recommended amount of magnesium for women in the U.S.?