the researchers in the latest study fed five class of mice a diet in which 60 thousand of calories derive from muscle . the meal started where the mouse , all males , were 1 year early , which is old - date in mouse longevity . as expected , the humans slowly developed traces of impending diabetes , with unfair enlarged livers , and started to life much sooner than mice fed a standard supermarket .
At the age of one year, male mice were fed with a diet in which 60 percent of calories came from fat.