A gym owner’s crusade against obesity has earned her a nomination as a national hero.

Linda Fondren, owner of Shape Up Sisters, is a candidate for CNN Heroes, a televised tribute by news network CNN to honor those who improve their communities.

Fondren’s nomination was for her launch last fall of Shape Up Vicksburg, a citywide, 17-week weight-loss challenge that has evolved into a walking club.

“I know that what Linda is doing is nothing short of saying ‘enough is enough,’” said Bruce Bobbins, Fondren’s friend and New York City-based publicist for the campaign, who nominated her. “We have to end this epidemic of obesity — and not only say it, but do what she’s doing.”