Those eating more pork actually lost fat from their abdomens. Waists were narrower. Body composition improved over the whole body. So weight can be lost without dieting if you eat more pork. A further benefit from eating more pork is the high thiamine level. Many overweight people have type 2 diabetes which can lead to thiamine deficiency.
Tests are now being done with chicken and beef to compare with pork. It could be that the high-protein diet due to eating the pork was beneficial. Maybe similar results in regard to weight loss will eventuate from eating more chicken and beef. Findings will be released in January 2012.