LEESBURG, Va. — Schools won’t have to cut more salt from meals just yet and some will be able to serve kids fewer whole grains, under changes to federal nutrition standards announced Monday.

The move by the Trump administration partially rolls back rules championed by former first lady Michelle Obama as part of her healthy eating initiative.

As his first major action in office, Agriculture Secretary Sonny Perdue said the department will delay an upcoming requirement to lower the amount of sodium in meals while continuing to allow waivers for regulations that all grains on the lunch line must be 50 percent whole grain.

Schools could also serve 1 percent flavored milk instead of the nonfat now required.

“If kids aren’t eating the food, and it’s ending up in the trash, they aren’t getting any nutrition — thus undermining the intent of the program,” said Perdue, who traveled to a school in Leesburg, Virginia, to make the announcement.

Before he signed the proclamation, Perdue and Senate Agriculture Chairman Pat Roberts, R-Kansas, ate chicken nuggets, fruit and salad with children at Catoctin Elementary. Perdue said he doesn’t see the changes as a rollback, but “we’re just slowing down the process.” He praised Obama’s nutrition efforts as first lady but said he wants the healthier meals to be more palatable.

He said the department will work on long-term solutions to further tweak the rules.

The changes reflect suggestions from the School Nutrition Association, which represents school nutrition directors and companies that sell food to schools. The group often battled with the Obama administration, which phased in the healthier school meal rules starting in 2012.

The Obama administration rules set fat, sugar and sodium limits on foods in the lunch line and beyond. Schools have long been required to follow government nutrition rules if they accept federal reimbursements for free and reduced-price meals for low-income students, but these standards were stricter. Obama pushed the changes as part of her “Let’s Move” campaign to combat childhood obesity.

The Trump administration changes leave most of the Obama administration rules in place, including rules that students must take fruits and vegetables on the lunch line. Some schools have asked for changes to that policy, saying students often throw them away.

But health advocates who have championed the rules are concerned about the freeze in sodium levels, in particular. School lunches for elementary school students are now required to have less than 1,230 mg of sodium, a change put in place in 2014. The changes would keep the meals at that level, delaying until at least 2020 a requirement to lower sodium to 935 mg. That requirement was scheduled to begin in the 2017-2018 school year.