At the forefront of the health and fitness community, JEN WIDERSTROM is committed to helping people understand, learn, and implement a holistic approach to health and wellness. Formerly a star of "American Gladiators", she is now a trainer on NBC's "The Biggest Loser". After completing her degree at the University of Kansas in Sports Administration, she went on to become certified by the leading certification program in the country, National Academy of Sports Medicine with an emphasis in nutrition, balance training, cardio performance, reactive and resistance training as well as in neuromuscular stretching. Jen is also committed to helping others through philanthropic endeavors, volunteering at orphanages and schools throughout Rwanda, Kenya, and Malawi and hosting events on Goodwill Military tours for troops in Kuwait and Iraq.