Scientists at the University of Utah found that even moderate amounts of sugar could be toxic to the health and lifespan of mice. The mice were given the equivalent of 3 sugary sodas a day. “For the rodents on the sweetened diet, sugar accounted for 25 percent of their total calorie intake. Up to a quarter of Americans consume that proportion of sugar as part of their diets.” These findings aside, if you’re a lab mouse, being part of the sugar study is probably considered to be a pretty good gig.