One study showed an average 5.1 kg ( 11.2 lb ) weight loss in a group taking a mixture of yerba mate , guarana , and damiana , compared to an average one-pound loss in a placebo group after 45 days .
This study shows an average 11.2 pound weight loss in a group taking a mixture of yerba mate , guaraná and damiana , compared to an average 1 pound loss in a placebo group after 45 days .
For the histories of Urawa , Ōmiya and Yono before the merger , see Urawa-ku and Saitama , Ōmiya-ku and Saitama and Yono and Saitama , respectively . On April 1 , 2005 , it merged with the city of Iwatsuki to its east , which became a new ward , Iwatsuki-ku .