Prior to the 1960s, people consumed relatively little fructose compared with today’s numbers. A century ago, an average person consumed just 5-10 pounds of fructose per year. To put it in familiar terms, that is roughly equal to the weight of a gallon of milk. In the 21st century, that number has increased to be as high as the equivalent of 15 gallons of milk.

Who chose these units for this article?