The modern suggested limit for added sugar, prescribed by The American Heart Association, is about 45 grams per day. Based on the idea of "added sugar" versus "naturally occurring sugar", AHA would probably have let the solo survey participant slide with a the little extra sugar in his diet. It was the 50's, you know. We were just getting all that exciting baking equipment.
However, today, the average American is consuming about 92 grams of sugar per day, with even more daunting numbers for teenagers; some averages as high as 161 grams.
Of course, sugar is not solely responsible for obesity in America (The Center for Disease Control shows a triple in obesity rates in teens over the last 30 years) but there is a remarkable correlation between increased added sugar intake in 1955 and now.
In New York, the sugar conversation couldn't be more sour as the beginning of "The Soda Ban" is realized in exactly one week.
The details of the now passed proposal are somewhat confusing. I'd suggest watching this NY Times video from September for a pretty clear-cut explanation.
For more topics by the numbers: