Getting a new cookbook means a few weeks of new menus for most families. Kathy Holdefer, spokesman for the American Cancer Society offices in Des Moines, says ‘‘The Great American Eat-Right Cookbook,’’ put out by the Cancer Society, offers not only tasty ways to feed the family, but recipes that have been tested by research to be offered as ways to help fight cancer. ‘‘It’s proven,’’ Holdefer said Monday while in Fort Dodge, ‘‘that risk-reduction techniques work. Those methods are to eat healthy food, be active, get regular screenings and don’t smoke.’’ She and Tyler Weig were in town Monday for a workshop training cosmetologists to help cancer patients look good and feel better. The new cookbook was part of the Cancer Society’s Eat Right Challenge. Holdefer said the Eat Right Challenge is part of the Great American Health Challenge. It was developed along the lines of the Great American Smokeout, which has seen great success for the American Cancer Society.