Assertion: drink's amount | /r/HasProperty | about 100 milligrams per day
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Source sentences:
text: A report on caffeine consumption among the U.S. population commissioned by FDA in 2009, and then updated in 2010 and again in 2012, indicated that teens and young adults ages 14 to 21 years consume, on average, approximately one-third the amount of caffeine as people over 21 – about 100 milligrams per day – and that most of their caffeine consumption is from beverages other than energy drinks (Somogyi 2012).