While the suggested workout may be backed by science, there doesn't appear to be anything "scientific" about the method used here. Diet alone could have been th

While the suggested workout may be backed by science, there doesn't appear to be anything "scientific" about the method used here. Diet alone could have been the sole contributor for any difference in his body composition over the 30 days. Water retention based on his food choices is another factor. If he wanted to actually prove something with this, he should have tracked his measurements and diet.