wwhat percentage of a fast food burger is real?
Study Breakdown. Here is a breakdown of what you might find in a fast food hamburger according to the studyâs findings 1  : Water content by weight ranged from 37.7% to 62.4% (mean of 49%). 2  Meat content in the hamburgers ranged from 2.1% to 14.8% (median of 12.1%).