I dont want to watch that video and waste my time. But! Does it go onto talk about how body weight, food and exercise are also important that is; the food that you eat could affect your weight and combined with exercise could greatly affect the type of weight you put on? ie; pure protein has less energy per unit of mass than fat/lard. now fancy biology and chemistry means that not all the energy of protein can be used to make fat, but it can be used to make muscle. so if you ingest say 10 lbs of pure protein then the maximum mount of fat you can gain is 4 lbs but you can gain almost 8 lbs of muscle theoretically. on the other hand if you eat 10 lbs of pure fat/lard, (you should go kill yourself oh wait your heart is already doing that) you can hardly gain any muscle but you can gain almost 9 lbs of fat. (note depending on the type of fat you eat you could gain almost 10lbs of fat as well)