Polyphenol found in turmeric reduces weight gain in animal studies

"According to a Tufts University, Boston, MA study funded by a grant from the United States Department of Agriculture and released to the media on May 18, 2009, curcumin, the major polyphenol found in turmeric, appears to reduce weight gain in mice and suppress the growth of fat tissue in mice and cell models. Can it also stop humans from gaining weight?"