First, no base line prior to the diet so we don't know how each brother would perform in the test without the effects of the diet. Poor science. 2nd, no one advocates a NO carb diet and low fat went the way of bell bottom jeans so they might as well compare a 1995 computer laptop to a 2014 computer laptop. Finally, no diet log, no activity log, regardless of what they think they ate or did, it's once again useless. Pretty much a waste of time