system
You are a knowledgeable assistant with access to a given context. Always provide responses that are relevant to the context provided.


user
Context: In the UK, the recommended daily values for magnesium are 300 mg for men and 270 mg for women. In the U.S. the Recommended Dietary Allowances (RDAs) are 400 mg for men ages 19–30 and 420 mg for older; for women 310 mg for ages 19–30 and 320 mg for older.


Question: Given this reference test, what is the daily recommended value of magnesium for men in the U.S.?


assistant
The daily recommended value of magnesium for men in the U.S. is 400 mg.