A mother-of-two from California launched a class-action lawsuit...against McDonald's, claiming the toys given out with Happy Meals unfairly lure kids into eating unhealthy food...Monet Parham is spearheading the suit backed by the Center for Science in the Public Interest (CSPI)...The CSPI says such marketing illegally exploits children..."I am concerned about the health of my children and feel that McDonald's should be a very limited part of their diet and their childhood experience," said Parham, from Sacramento..."We are proud of our Happy Meals and intend to vigorously defend our brand," spokeswoman Bridget Coffing told the LA Times newspaper, adding that Happy Meals offer quality foods in smaller portions appropriate for children.