As we've reported, he is pushing for a one-year waiver of the new nutrition rules if a district can show the standards cost too much. "It only gives the schools more time to adjust," he says.

But the proposal goes beyond what the School Nutrition Association initially asked for.

Under Aderholt's provision, school districts can get a yearlong waiver from all of the standards set by the new standards — even those already in effect.

Democrats say Republicans just want to kill off the nutrition standards next year. During the May committee meeting, Florida Rep. Debbie Wasserman Schultz asked Aderholt if Republicans intended to eliminate the nutrition standards.

"Not in this bill," he said, prompting other lawmakers to laugh. "There are movements out there that would like to change it ... but this does not do that."

Back in 2010, the SNA vigorously supported the Healthy Hunger-Free Kids Act. Now it embraces Aderholt's provision, although president Leah Schmidt, a nutritionist from Kansas City, Mo., says the group only asked for help on four specific issues.

"The waiver was not one of our original asks," she says.

In the past, those issues might have been fixed in talks with the USDA, but the association dismissed a lobbyist with good USDA connections last year. The new lobbyists have good connections with congressional Republicans, and now Schmidt sounds a lot like Aderholt.

"These overprescriptive regulations have made it really difficult for a lot of our members. And we are in this for our members," she says.

As the Environmental Working Group noted Tuesday in a blog post, tax records show that $6.7 million of $10.5 million the School Nutrition Association collected in 2012 came from sponsorship fees from food companies like Schwan's Food Service, a major provider of pizza to schools.

And the SNA may also be getting some corporate lobbying help. Schwan's Food Service reported that it was lobbying on the school nutrition issue. Company officials didn't respond to NPR's phone calls.

Two other big players in school nutrition — ConAgra and the American Frozen Food Institute — tell NPR they're sitting out the fight over the waiver.

The shift in SNA's approach also means it is up against its old liberal-leaning allies who want the nutrition standards to stay, including the Center for Science in the Public Interest.

"Instead of working cooperatively to try to help those schools that are struggling, SNA is working with a number of conservatives that completely oppose the school nutrition standards and are trying to gut them," says Margo Wootan, the center's director of food policy.

And the pressure is on. First lady Michelle Obama is stepping up her efforts to save the standards, and 19 former presidents of the SNA are asking Congress to reject the waiver.

Copyright 2014 NPR.

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Lobbyists Loom Behind The Scenes Of School Nutrition Fight