"Surveys have also found that the average American consumes around 22.2 teaspoons of added sugar every day. According to the new guidelines, we should really be eating a fraction of that amount. The recommended sugar intake for adult women is 5 teaspoons (20 grams) of sugar per day, for adult men, it’s 9 teaspoons (36 grams) daily, and for children, it's 3 teaspoons (12 grams) a day."
Rodale - recommended sugar intake, [http://www.rodale.com/recommended-sugar-intake], last updated unknown, last seen on the 25th of May 2013.
Image also taken from the page above.