There has been much research lately on the mechanisms that control feelings of hunger or fullness. One is the hormone cholecystokinin (CCK), which tells the brain that a person is full. Dr. Peikin, director of the Nutrition Program at Jefferson Medical College in Philadelphia, proposes that certain foods trigger the release of CCK into the bloodstream, thus making you feel full sooner and eat less at a meal. These foods are called ``satietizers'' (i.e., opposite of appetizers). The average weight loss on this diet, which has been tested in the hospital setting, is two pounds per week. Exercise tips, sample menus, and recipes are included. An interesting and timely approach to weight control. Recommended for public libraries. Anne Washburn, Julius C. Smith Law Lib., Greensboro, N.C.